criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include <stdio.h>
#include <math.h>

#pragma warning (disable:4996)


int main() {
	//入力変数の宣言
	__int64 X;
	unsigned __int64 K, D;


	//入力
	scanf("%I64i%I64u%I64u", &X, &K, &D);


	//関数プロトタイプ
	unsigned __int64 absolute(__int64, unsigned __int64, unsigned __int64);


	//出力
	printf("%I64u", absolute(X, K, D));
}


//高橋君が移動可能な座標すべてを出力する関数
unsigned __int64 absolute(__int64 X, unsigned __int64 K, unsigned __int64 D) {
	//バッファ変数の宣言
	__int64 Buffer = X;


	//原点に最も近い座標を調べる
	for (int i = 0; i < K; i++) {
		if (Buffer >= 0) {
			Buffer -= D;
		}
		else {
			Buffer += D;
		}
	}


	//調べた座標を絶対値で返す
	if (Buffer >= 0) {
		return Buffer;
	}
	else {
		return (-Buffer);
	}
}

/* 実行時間制限: 2 sec / メモリ制限: 1024 MB
配点 : 300点

問題文
数直線上で暮らす高橋君は、今座標 X にいます。
これから高橋君はちょうど K 回、座標の正または負の方向に D 移動する行為を繰り返そうと考えています。
より正確には、1 回の移動では 座標 x から x+D または x−D に移動できます。
高橋君は、ちょうど K 回移動した後にいる座標の絶対値が最小となるように移動したいです。
 K 回の移動後の座標の絶対値としてあり得る値の最小値を求めてください。

制約
・−pow(10, 15) ≤ X ≤ pow(10, 15)
・1 ≤ K ≤ pow(10, 15)
・1 ≤ D ≤ pow(10, 15)
・入力は全て整数である

入力
入力は以下の形式で標準入力から与えられる。
X K D

出力
K 回の移動後の座標の絶対値としてあり得る値の最小値を出力せよ。

入力例 1
6 2 4

出力例 1
2

高橋君は、今座標 6 にいます。次のように移動するのが最適です。
6 から (6−4=) 2 に移動する。
2 から (2−4=) −2 に移動する。
移動後の座標の絶対値は 2 で、これより小さくすることはできません。

入力例 2
7 4 3

出力例 2
1

高橋君は、今座標 7 にいます。例えば次のように移動するのが最適です。
7 から 4 に移動する。
4 から 7 に移動する。
7 から 4 に移動する。
4 から 1 に移動する。
移動後の座標の絶対値は 1 で、これより小さくすることはできません。

入力例 3
10 1 2

出力例 3
8

入力例 4
1000000000000000 1000000000000000 1000000000000000

出力例 4
1000000000000000

答えは非常に大きな値になる場合もあります。*/

Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: '__int64' was not declared in this scope; did you mean '__ynf64'?
    9 |         __int64 X;
      |         ^~~~~~~
      |         __ynf64
a.cc:10:26: error: expected initializer before 'K'
   10 |         unsigned __int64 K, D;
      |                          ^
a.cc:14:35: error: 'X' was not declared in this scope
   14 |         scanf("%I64i%I64u%I64u", &X, &K, &D);
      |                                   ^
a.cc:14:39: error: 'K' was not declared in this scope
   14 |         scanf("%I64i%I64u%I64u", &X, &K, &D);
      |                                       ^
a.cc:14:43: error: 'D' was not declared in this scope
   14 |         scanf("%I64i%I64u%I64u", &X, &K, &D);
      |                                           ^
a.cc:18:26: error: expected initializer before 'absolute'
   18 |         unsigned __int64 absolute(__int64, unsigned __int64, unsigned __int64);
      |                          ^~~~~~~~
a.cc:22:25: error: 'absolute' was not declared in this scope
   22 |         printf("%I64u", absolute(X, K, D));
      |                         ^~~~~~~~
a.cc: At global scope:
a.cc:27:18: error: expected initializer before 'absolute'
   27 | unsigned __int64 absolute(__int64 X, unsigned __int64 K, unsigned __int64 D) {
      |                  ^~~~~~~~
Language: C

// Atcoder beginner round 175 C - Walking Takahashi

#include <iostream>
#include <algorithm>
using namespace std;
typedef long long ll;

void solve() {
    ll X, K, D;
    cin >> X >> K >> D;
    X = abs(X);
    if (X - K * D > 0)
        cout << X - K * D;
    else {
        K -= X / D;
        X = X - (X /D)*D;
        if (K % 2 == 0) 
            cout << X;
        else 
            cout << abs(D - X);
    }
}

int main() {
    solve();
    return 0;
}

Compiler output:
main.c:3:10: fatal error: iostream: No such file or directory
    3 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: Java

import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		long X = Math.abs(sc.nextLong());
		long K = sc.nextLong();
		long D = sc.nextLong();

		long minX;
		long maxX;
		long minK = X / D;

		if(X % D > Math.abs((X % D) - D)) {
			minX = Math.abs((X % D) - D);
			maxX = X % D;
			minK++;
		}

		if(minK >= K) {
			System.out.println(Math.abs(X- (D * K)));
			return;
		}

		if((K-minK)%2 == 0) {
			System.out.println(minX);
		}else {
			System.out.println(maxX);
		}

	}

}

Compiler output:
Main.java:26: error: variable minX might not have been initialized
			System.out.println(minX);
			                   ^
Main.java:28: error: variable maxX might not have been initialized
			System.out.println(maxX);
			                   ^
2 errors
Language: C++

#include<iostream>
#include<string>
#include<math.h>
#include<queue>
#include<vector>
#include<map>
#include<iomanip>
#include<tuple>
#include<bitset>

using namespace std;
#define rep(i,n) for(int i=0;i<(n);i++)
#define printfloat(x) cout << fixed << setprecision(7) << (x) << endl;
#define printbit(x) cout << bitset<15>(x) << endl;
using ll = long long int;



long double pi = 3.14159265359;

long long int x,k,d,ans;


int main(){
    cin >> x >> k >> d;
    if(x <0){
        x = -x;
    }

    if(x >= 0 ){
        if(x/D > k){
            ans = x-k*d;
        }
        else{
            // cout << k-(x+d)/d << " "  << endl;
            if((k-(x+d)/d) % 2){
                // cout << x-(x+d)/d*d+d << " ooooo" << endl;
                ans = x-(x+d)/d*d+d;
            }
            else{
                // cout << x-(x+d)/d*d <<  "1111" << endl;
                ans = -1*(x-(x+d)/d*d);
            }
        }
    }
    // else{
    //     if(x+k*d < 0){
    //         ans = x+k*d;
    //     }
    //     else{

    //         if((k-(x-d)/d) % 2){
    //             ans = abs(x-(x+d)/d*d-d);
    //         }
    //         else{
    //             ans = abs(x-(x+d)/d*d);
    //         }
    //     }
    // }
    cout << ans << endl;

return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:14: error: 'D' was not declared in this scope
   31 |         if(x/D > k){
      |              ^
Language: C++

#include"bits/stdc++.h"
using namespace std;
typedef long long ll;

int main() {
	ll x,k,d;
	cin >> x>>k>>d;
	if (x<0) {
		x *= -1;
	}

	if (x/d>k) {
		cout << x - k * d;
	}

	else {
		ll m;
		while (x>=0) {
			m = x;
			x -= d;
			k--;
		}
		if (k % 2 == 0) {
			cout << abs(x);
		}
		else {
			cout << abs(m);
		}
	}


	return 0;
}

int main()
{
	ll X, K, D;
	cin >> X >> K >> D;
	// Xの正負は考慮しなくて良い
	if (X < 0)
	{
		X *= -1;
	}

	// 貪欲に原点に近づけば良い場合
	if (X / D < K)
	{
		cout << X - K * D << endl;
	}
	// 原点に近い点の候補が２つになる場合
	else
	{
		K -= X / D;
		if (K % 2 == 0)
		{
			cout << X % D << endl;
		}
		else
		{
			cout << D - X % D << endl;
		}
	}
}

Compiler output:
a.cc:35:5: error: redefinition of 'int main()'
   35 | int main()
      |     ^~~~
a.cc:5:5: note: 'int main()' previously defined here
    5 | int main() {
      |     ^~~~
Language: C++

#include<bits/stdc++.h>
#include <math.h>
using namespace std;
const double pi=acos(-1.0);
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int max(int a,int b){if(a>b){return a;}return b;}
int min(int a,int b){if(a<b){return a;}return b;}
int main(void){
    long long int x,k,d,ans,a;
    cin>>x>>k>>d;
    
    //if(x>=k*d){cout<<x-k*d<<endl;return 0;}
    //else{
        
    //}
    x=abs(x);
    ans=x;
    if(k<x/d){
        x-=k*d;cout<<x<<endl;return 0;
    }
    else{
        a=x/d;x-=a*d;k=k-a;
    }
    if(k%2==0)continue;
    else{x=min(abs(x),abs(x-d);)}
    
    
    cout<<x<<endl;
    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:25:15: error: continue statement not within a loop
   25 |     if(k%2==0)continue;
      |               ^~~~~~~~
a.cc:26:31: error: expected ')' before ';' token
   26 |     else{x=min(abs(x),abs(x-d);)}
      |               ~               ^
      |                               )
a.cc:26:32: error: expected primary-expression before ')' token
   26 |     else{x=min(abs(x),abs(x-d);)}
      |                                ^
Language: C++

#include<iostream>
#include<algorithm>
#include<queue>
#include<deque>
#include<map>
#include<vector>
long long int mod = 1000000007;
long long modpow(long long a, long long n, long long mod);
long long modinv(long long a, long long mod);


using namespace std;
int main() {
	
	//C
	long long int x, k, d;
	cin >> x >> k >> d;
	if (x < 0)x = -x;
	if (x > 0) {
		if (sqrt(x) > sqrt(k) * sqrt(d)) {
			cout << x - k * d << endl;
			return 0;
		}
		if ((k - (x / d)) % 2 == 0) {
			cout << x % d << endl;
			return 0;
		}
		else {
			cout << d - (x % d) << endl;
			return 0;
		}
	}
	

	//D
	/*
	int n, k;
	cin >> n >> k;
	int p[5000],c[5000];
	int i;
	for (i = 0; i < n; i++) {
		cin >> p[i];
		p[i]--;
	}
	for (i = 0; i < n; i++) {
		cin >> c[i];
	}
	int loopnum = 0, j;
	int l[5000];
	int lpl[5000];
	for (i = 0; i < n; i++) {
		l[i] = -1;
		lpl[i] = 0;
	}
	int loopl;
	for (i = 0; i < n; i++) {
		if (l[i] == -1) {
			j = i;
			loopl = 0;
			while (l[j] == -1) {
				l[j] = loopnum;
				j = p[j];
				loopl++;
			}
			lpl[loopnum] = loopl;
			loopnum++;
		}
	}

	for (i = 0; i < loopnum; i++) {

	}
	*/
}
// a^n mod を計算する
long long modpow(long long a, long long n, long long mod) {
	long long res = 1;
	while (n > 0) {
		if (n & 1) res = res * a % mod;
		a = a * a % mod;
		n >>= 1;
	}
	return res;
}

// a^{-1} mod を計算する
long long modinv(long long a, long long mod) {
	return modpow(a, mod - 2, mod);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:21: error: 'sqrt' was not declared in this scope
   20 |                 if (sqrt(x) > sqrt(k) * sqrt(d)) {
      |                     ^~~~
Language: C

#include<iostream>
#include<bits/stdc++.h>
using namespace std;
int main()
{
    int x,k,d;
    cin >> x >> k >> d;
    while(k>0)
    {
        if(((x-d)<0)&&(abs(x-d)>x))
        {
            x=x+d;
        }
        else if(((x-d)>0)&&(abs(x-d)<=x))
        {
            x=x-d;
        }
        k--;
    }
    cout << x ;
}

Compiler output:
main.c:1:9: fatal error: iostream: No such file or directory
    1 | #include<iostream>
      |         ^~~~~~~~~~
compilation terminated.
Language: C

#include <stdio.h>

int main()
{
	long long int n,d,k;
	scanf("%lld%lld%lld",&n,&k,&d);
	if(n<0)n=n*(-1);
	
	int a=k>(n/d)?n/d:k;
	
	k-=a;
	n-=a*d;
	
	if(k%2==0){
		printf("%d",n);
	}else{
		if((n-d)<0){
			printf("%d",-1*(n-d));
		}else{
			printf("%d",(n-d));
		
	}
}

Compiler output:
main.c: In function 'main':
main.c:23:1: error: expected declaration or statement at end of input
   23 | }
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long

int main(){
	ll x,k,d;
	cin>>x>>k>>d;
	x=abs(x);
	if(x>=kd){
		cout<<x-kd;
	}else{
		ll num = x/d ;
		x=x-num*d;
		k=k-num;
		if(k%2==0){
			cout<<x;
		}else{
			cout<<abs(x-d);
		}		
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:15: error: 'kd' was not declared in this scope; did you mean 'd'?
    9 |         if(x>=kd){
      |               ^~
      |               d
Language: C++


#include <unordered_map>
#include <functional>
#include <algorithm>
#include <iostream>
#include <climits>
#include <vector>
#include <stack>
#include <queue>
#include <map>
#include <set>
#define mod 1000000007
using namespace std;
#define ll long long int
int main()
{
    ll x,k,d;
    cin>>x>>k>>d;
    x=abs(x);
  //  cout<<x<<endl;
    if(x>0 and (x/d)>=k){
    ll a=x/d;
    //cout<<a<<endl;
    x=x-(k)*d;
    cout<<x<<endl;
    continue;
    }
    ll y=x/d;
   // cout<<y<<endl;
    x=x-y*d;
   // cout<<x<<endl;
    k-=y;
   // cout<<y<<endl;
    if(k%2==0)
    {
      cout<<abs(x)<<endl;
    }
    else
    {
      cout<<x+d<<endl;
    }
  }


Compiler output:
a.cc: In function 'int main()':
a.cc:26:5: error: continue statement not within a loop
   26 |     continue;
      |     ^~~~~~~~
Language: C++

#include<iostream>
#include<vector>
#include<map>
#include<string>
#include<algorithm>
#include<cmath>

int main(){
  int x, k, d;
	cin >> x >> k >> d;

	for (int i = 0; i < k; i++) {
		if (x > 0) {
			x = x - d;
		}
		else {
			x = x + d;
		}
	}
  
    cout << abs(x);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
   10 |         cin >> x >> k >> d;
      |         ^~~
      |         std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:21:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   21 |     cout << abs(x);
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include<iostream>
#include<vector>
#include<map>
#include<string>
#include<algorithm>
#include<cmath>

int main(){
  int x, k, d;
	cin >> x >> k >> d;

	for (int i = 0; i < k; i++) {
		if (x > 0) {
			x = x - d;
			cout << x << endl;
		}
		else {
			x = x + d;
			cout << x << endl;
		}
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
   10 |         cin >> x >> k >> d;
      |         ^~~
      |         std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:15:25: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   15 |                         cout << x << endl;
      |                         ^~~~
      |                         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:15:38: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   15 |                         cout << x << endl;
      |                                      ^~~~
      |                                      std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:19:25: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   19 |                         cout << x << endl;
      |                         ^~~~
      |                         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:19:38: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   19 |                         cout << x << endl;
      |                                      ^~~~
      |                                      std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <functional>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
using P = pair<int, int>;

int main() {
	ll x, k, d;
	cin >> x >> k >> d;
	ll ans = 0;
	ll i = 1;
	if (x < 0) {
		// xは正の数だけ考えればよい
		x = abs(x);
	}
	if (k * d == x) {
		ans = 0;
	}
	else if (k * d < x) {
		ans = x - k * d;
	}

	else if (k > x / d) {
		x -= x / d;
		k -= x / d;
		if (k %2== 0) {
			ans = x;
		}
		else {
			if (x >= 0) {
				ans = x - d;
			}
			else {
				ans = x + d;
			}
		}
	}
	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: 'cin' was not declared in this scope
    9 |         cin >> x >> k >> d;
      |         ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <functional>
  +++ |+#include <iostream>
    2 | #define rep(i,n) for (int i = 0; i < (n); ++i)
a.cc:14:21: error: 'abs' was not declared in this scope; did you mean 'ans'?
   14 |                 x = abs(x);
      |                     ^~~
      |                     ans
a.cc:38:9: error: 'cout' was not declared in this scope
   38 |         cout << ans << endl;
      |         ^~~~
a.cc:38:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:38:24: error: 'endl' was not declared in this scope
   38 |         cout << ans << endl;
      |                        ^~~~
a.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    1 | #include <functional>
  +++ |+#include <ostream>
    2 | #define rep(i,n) for (int i = 0; i < (n); ++i)
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  long long int x,k,d,i,val=0;
  scanf("%lld %lld %lld",&x,&k,&d);
  val=x;
  for(i=0;i<k;i++){
    if (abs(val+d)<abs(val))
      val = val+d
    else
      val = val-d
  }
  cout<<val;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: expected ';' before 'else'
    9 |       val = val+d
      |                  ^
      |                  ;
   10 |     else
      |     ~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  long long int x,k,d,i,val=0;
  scanf("%lld %lld %lld",&x,&k,&d);
  val=x;
  for(i=0;i<k;i++){
    if (abs(val+d)<abs(val))
      val = val+d;
    else
      val = val-d;
   cout<<val;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:13:4: error: expected '}' at end of input
   13 |   }
      |    ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  long long int x,k,d,i,val=0;
  scanf("%lld %lld %lld",&x,&k,&d);
  val=x;
  for(i=0;i<k;i++){
    if (abs(val+d)<abs(val))
      val = val+d
    else
      val = val-d
   cout<<val;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: expected ';' before 'else'
    9 |       val = val+d
      |                  ^
      |                  ;
   10 |     else
      |     ~~~~          
a.cc:13:4: error: expected '}' at end of input
   13 |   }
      |    ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
using P = pair<int,int>;

int main(){
  int x,k,d;
  cin >> x >> k >> d;
  int sei,fu;
  
  sei = x + (k*d);
  fu = x - (k*d);
  
  if(abs(sei) > abs(fu)){
    cout << abs(sei) << endl;
  else
    cout << abs(fu) << endl;
  }
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:3: error: expected '}' before 'else'
   17 |   else
      |   ^~~~
a.cc:15:25: note: to match this '{'
   15 |   if(abs(sei) > abs(fu)){
      |                         ^
a.cc: At global scope:
a.cc:21:3: error: expected unqualified-id before 'return'
   21 |   return 0;
      |   ^~~~~~
a.cc:22:1: error: expected declaration before '}' token
   22 | }
      | ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
using P = pari<int,int>;

int main(){
  int x,k,d;
  cin >> x >> k >> d;
  int sei,fu;
  
  sei = x + (k*d);
  fu = x - (k*d);
  
  if(abs(sei) > abs(fu)){
    cout << abs(sei) << endl;
  else
    cout << abs(fu) << endl;
  }
  
  return 0;
}

Compiler output:
a.cc:5:11: error: 'pari' does not name a type
    5 | using P = pari<int,int>;
      |           ^~~~
a.cc: In function 'int main()':
a.cc:17:3: error: expected '}' before 'else'
   17 |   else
      |   ^~~~
a.cc:15:25: note: to match this '{'
   15 |   if(abs(sei) > abs(fu)){
      |                         ^
a.cc: At global scope:
a.cc:21:3: error: expected unqualified-id before 'return'
   21 |   return 0;
      |   ^~~~~~
a.cc:22:1: error: expected declaration before '}' token
   22 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {
    long long  X,K,D;
    cin >> X >> K >> D;
    X = abs(X);

    long long  ans;
    if(X >= K*D){
        ans = X - K * D;
    }
    else{
        long long rep = X/D;
        ans = X - (rep * D);
        ans = min(ans, abs(ans-D));

        if(!(K - rep) % 2 == 0){
            if(ans <= 0){
                ans += D;
        }else{
            ans -= D;
        }
    }

    cout << abs(ans) << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:2: error: expected '}' at end of input
   29 | }
      |  ^
a.cc:5:12: note: to match this '{'
    5 | int main() {
      |            ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(void){
	long long x,k,d,o,p,MIN;
	cin >> x >> k >> d;
	x = abs(x);
	o = x /d;	
	p = x % d;
	if(o <= k){
		if((o - k) % 2 == 0)	cout << p << endl;
		else					cout << abs(x - d) << endl;		
	else{
		cout << abs(x - d * k) << endl;
	}
	return 0;
}
	

Compiler output:
a.cc: In function 'int main()':
a.cc:12:9: error: expected '}' before 'else'
   12 |         else{
      |         ^~~~
a.cc:9:19: note: to match this '{'
    9 |         if(o <= k){
      |                   ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  int x,k,d;
  cin>>x>>k>>d;
  if(x==k&&k==d)
    c=x;
  else
    c=abs(x-d);
   cout<<c;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'c' was not declared in this scope
    8 |     c=x;
      |     ^
a.cc:10:5: error: 'c' was not declared in this scope
   10 |     c=abs(x-d);
      |     ^
a.cc:11:10: error: 'c' was not declared in this scope
   11 |    cout<<c;
      |          ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  int x,k,d;
  cin>>x>>k>>d;
  if(x==k&&k==d)
    c=x;
  else
    c=abs(x-d)
   cout<<c;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'c' was not declared in this scope
    8 |     c=x;
      |     ^
a.cc:10:5: error: 'c' was not declared in this scope
   10 |     c=abs(x-d)
      |     ^
Language: C

#include <stdio.h>
#include<stdlib.h>
#include<math.h>

int main(void) {
  long long int x,k,d;
scanf("%lld %lld %lld",&x,&k,&d);
x=fabsl(x);
if(a-k*d>=0)
printf("%lld\n",a-k*d);
else
{
  k=k-a/d;
  if(k%2!=0)
  printf("%lld\n",d-x%d);
  else
  printf("%lld\n",x%d);
}
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:9:4: error: 'a' undeclared (first use in this function)
    9 | if(a-k*d>=0)
      |    ^
main.c:9:4: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <bits/stdc++.h>
using namespace std;

  int main()
  {
  
  int64_t a,b,c;
  cin >> a >> b >> c;
  if (a<0) {a*=-1}
  if (b<0) {b*=-1}
  if (c<0) {c*=-1}
    
  int64_t n = b*c;
  int64_t d = a / c;
  int64_t e = a % c;
  int64_t f = b-d;
  int64_t p = f % 2;
   
  if (n<0) {n*=-1}
  if (d<0) {d*=-1}
  if (e<0) {e*=-1}
  if (f<0) {f*=-1}
  if (p<0) {p*=-1}
    
  if ( n < a ) {
  cout << a-n << endl;
               }
  else if ( n == a ){
    cout << 0 << endl;
                    }
  else
  {
    
  if ( p == 0 ){
    cout << e << endl;
               }
  else {
    cout << c - e << endl;
       }
  }  
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: expected ';' before '}' token
    9 |   if (a<0) {a*=-1}
      |                  ^
      |                  ;
a.cc:10:18: error: expected ';' before '}' token
   10 |   if (b<0) {b*=-1}
      |                  ^
      |                  ;
a.cc:11:18: error: expected ';' before '}' token
   11 |   if (c<0) {c*=-1}
      |                  ^
      |                  ;
a.cc:19:18: error: expected ';' before '}' token
   19 |   if (n<0) {n*=-1}
      |                  ^
      |                  ;
a.cc:20:18: error: expected ';' before '}' token
   20 |   if (d<0) {d*=-1}
      |                  ^
      |                  ;
a.cc:21:18: error: expected ';' before '}' token
   21 |   if (e<0) {e*=-1}
      |                  ^
      |                  ;
a.cc:22:18: error: expected ';' before '}' token
   22 |   if (f<0) {f*=-1}
      |                  ^
      |                  ;
a.cc:23:18: error: expected ';' before '}' token
   23 |   if (p<0) {p*=-1}
      |                  ^
      |                  ;
Language: C++

#include <bits/stdc++.h>
using namespace std;

  int main()
  {
  int y=1; 
  int a,b,c;
  cin >> a >> b >> c;
  
  while(1){
  if ( a%=2 == 0 && b%=2 == 0 && c%=2 == 0){
  a/=2; b/=2; c/=2; y*=2;
                                           }
   
  else if ( a%=3 == 0 && b%=3 == 0 && c%=3 == 0){
  a/=3; b/=3; c/=3; y*=3;
                                                }
    
  else if ( a%=5 == 0 && b%=5 == 0 && c%=5 == 0){
  a/=5; b/=5; c/=5; y*=5;
                                                }

  else if ( a%=7 == 0 && b%=7 == 0 && c%=7 == 0){
  a/=7; b/=7; c/=7; y*=7;
                                                }
  else { break; }
           }
  
  if (b<0) {b*=-1;}
  if (c<0) {c*=-1;} 
  
  for ( int i = 0; i < b; i++ ){
  if (a<0) {a*=-1;}

  a -= c;
                               }
  a *= y;
  if ( a < 0 ){ 
  a *= -1;
              }
  cout << a << endl;

    
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:11:35: warning: division by zero [-Wdiv-by-zero]
   11 |   if ( a%=2 == 0 && b%=2 == 0 && c%=2 == 0){
      |                        ~~~~~~~~~~~^~~~~~~~
a.cc:11:31: error: lvalue required as left operand of assignment
   11 |   if ( a%=2 == 0 && b%=2 == 0 && c%=2 == 0){
      |                        ~~~~~~~^~~~
a.cc:15:40: warning: division by zero [-Wdiv-by-zero]
   15 |   else if ( a%=3 == 0 && b%=3 == 0 && c%=3 == 0){
      |                             ~~~~~~~~~~~^~~~~~~~
a.cc:15:36: error: lvalue required as left operand of assignment
   15 |   else if ( a%=3 == 0 && b%=3 == 0 && c%=3 == 0){
      |                             ~~~~~~~^~~~
a.cc:19:40: warning: division by zero [-Wdiv-by-zero]
   19 |   else if ( a%=5 == 0 && b%=5 == 0 && c%=5 == 0){
      |                             ~~~~~~~~~~~^~~~~~~~
a.cc:19:36: error: lvalue required as left operand of assignment
   19 |   else if ( a%=5 == 0 && b%=5 == 0 && c%=5 == 0){
      |                             ~~~~~~~^~~~
a.cc:23:40: warning: division by zero [-Wdiv-by-zero]
   23 |   else if ( a%=7 == 0 && b%=7 == 0 && c%=7 == 0){
      |                             ~~~~~~~~~~~^~~~~~~~
a.cc:23:36: error: lvalue required as left operand of assignment
   23 |   else if ( a%=7 == 0 && b%=7 == 0 && c%=7 == 0){
      |                             ~~~~~~~^~~~
Language: C++

X, K, D = map(int, input().split())
mid = abs(X)
if K*D > mid:
    mm = mid // D
    K = K - mm
    mid = mid - mm * D
    if K % 2 == 0:
        print(mid)
    else:
        print(abs(mid - D))
else:
    print(mid - K * D)

Compiler output:
a.cc:1:1: error: 'X' does not name a type
    1 | X, K, D = map(int, input().split())
      | ^
Language: Java

mport java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);

		String[] numString = scan.nextLine().split(" ");

		long[] numLong = new long[numString.length];

		for(int i = 0; i < numString.length ; i++) {
			numLong[i] = Long.parseLong(numString[i]);
		}

		numLong[2] = Math.abs(numLong[2]);

		for(int i = 0; i < numLong[1] ; i++) {
		if(numLong[0] > 0) {
				numLong[0] = numLong[0] - numLong[2];
		}
		else {
				numLong[0] = numLong[0] + numLong[2];
		}
		}
		System.out.println(Math.abs(numLong[0]));
	}

}

Compiler output:
Main.java:1: error: class, interface, enum, or record expected
mport java.util.Scanner;
^
1 error
Language: Java

import java.util.*;

public class emne {
    public static Scanner Scan = new Scanner(System.in);

    public static void main(String[] args) {
        long x = Scan.nextLong();
        long k = Scan.nextLong();
        long d = Scan.nextLong();

        x = Math.abs(x);
        long cnt = Math.min(k, x / d);
        x -= cnt * d;
        k -= cnt;
        if(k % 2 == 1) x = Math.abs(x - d);

        System.out.println(x);
    }
}

Compiler output:
Main.java:3: error: class emne is public, should be declared in a file named emne.java
public class emne {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
using namespace std;
using ll = long long;
using d = double;

int main(){
  ll x,k,d;
  cin >> x >> k >> d;
  if(x<0) x*=(-1);
  ll c = x/d;
  if(c>=k) return cout << abs(x-d*k) << endl,0;
  
  return 0;
}



/
#include <bits/stdc++.h>
#define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
using namespace std;
using ll = long long;
using d = double;

int main(){
  ll x,k,d;
  cin >> x >> k >> d;
  if(x<0) x*=(-1);
  ll a = abs(x/d);
  ll b = abs(x%d);
  ll c = k-a;
  ll y = abs(d-x);
  if(a>0){
    if(a>=k){
      
      return cout << abs(x-d*k) << endl,0;
    }
    else {
      if(b<=abs(b-d)){
        if(c%2==0) return cout << b << endl,0;
        else return cout << abs(b-d) << endl,0;
      }
      else {
        if((c+1)%2==0) return cout << abs(b-d) << endl,0;
        else return cout << b << endl,0;
      }
    }
  }
  else{
    if(y<=x){
      if((k-1)%2==0) return cout << y << endl,0;
      else return cout << x << endl,0;
    }
    else {
      if(k==1) return cout << min(y,x) << endl,0;
      c = k-a-1;
      a = abs(y/d);
      b = abs(y%d);
      if(a>=c) return cout << abs(y-d*c) << endl,0;
      else {
        if(b<=abs(b-d)){
          if(c%2==0) return cout << b << endl,0;
          else return cout << abs(b-d) << endl,0;
        }
        else {
          if((c+1)%2==0) return cout << abs(b-d) << endl,0;
          else return cout << b << endl,0;
        }
      }
    }
  }
  return 0;
}


Compiler output:
a.cc:19:1: error: expected unqualified-id before '/' token
   19 | /
      | ^
a.cc:26:5: error: redefinition of 'int main()'
   26 | int main(){
      |     ^~~~
a.cc:7:5: note: 'int main()' previously defined here
    7 | int main(){
      |     ^~~~
Language: C++

#include<iostream>
using namespace std;
using ll=long long;
int main(){
  ll x,k,d;
  cin>>x>>k>>d;
  x=abs(x);
  ll straight=min(k,x/d);
  k-=straght;
  x-=straight*d;
  if(k%2==0){
    cout<<x<<endl;
  }
  else{
    cout<<d-x<<endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:6: error: 'straght' was not declared in this scope; did you mean 'straight'?
    9 |   k-=straght;
      |      ^~~~~~~
      |      straight
Language: C++

#include<bits/stdc++.h>
#define ll long long int
using namespace std;
int main()
{
    ll a,b,c,n,m,r,d;
    cin>>a>>b>>c;
    if(a<0)
        a*=-1;
    n=a/c;
    if(a>(b*c)){
        m=b*c;
        cout<<abs(m-a);
    }
    else if(a==c){
        if(b%2==0)cout<<a<<endl;
        else cout<<"0\n";
    }
    else if(c>a){
        if(b%2==0)cout<<a<<endl;
        else cout<<c-a<<endl;
    }
    else{/
        r=a/c;
        n=b-r;
        if(n%2==0)cout<<a%c;
        else cout<<abs((a%c)-c);
    }

}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:10: error: expected primary-expression before '/' token
   23 |     else{/
      |          ^
Language: C

#include<stdio.h>

int main(){
  int x,k;d;
  scanf("%d %d %d",&x,&k,&d);
  
  int y[k+1];
  for(int i=0;i<(k+1);i++){
    y[i]=d*i-d*(k-i);
  }
  for(int i=0;i<k;i++){
    for(int j=k;j>i;j--){
      int t=y[j];
      y[j]=y[j-1];
      y[j-1]=t;
    }
  }
  printf("%d\n",y[0]);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:11: error: 'd' undeclared (first use in this function)
    4 |   int x,k;d;
      |           ^
main.c:4:11: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <iostream>
#include <algorithm>
using namespace std;

long long myabs(long long x) {
    if (x < 0)
        x *= -1;
    return x;
}

int main()
{
    long long pos;
    unsigned long long n, d;

    cin >> pos >> n >> d;
    pos = myabs(pos);

    if (pos >= n * d) {
        cout << pos - n * d << endl;
        return 0;
    }
    
    else {
     //10 8 2 のとき 0 3 2 と同じである  10 8 3  == 1 5 3
        n -= pos / d;
        pos -= (pos/d)*d;
    } 
 
    long long diff = long long(pos - d);
   
        if ( diff <= 0) {
            if (n % 2 == 0) {
                cout << myabs(pos) << endl;
                return 0;
            }
            else
                cout << myabs(pos - d) << endl;
            return 0;
        }
        pos = myabs(pos - d);
    
    cout << pos << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:22: error: expected primary-expression before 'long'
   30 |     long long diff = long long(pos - d);
      |                      ^~~~
Language: Java

public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
			long X = sc.nextLong();
			long K = sc.nextLong();
			long D = sc.nextLong();
			long absX = Math.abs(X);
			long absD = Math.abs(D);
            long timesk = absX/absD;
            long amari = absX%absD;
            
            if(timesk>K) {
            	System.out.println(absX-K*D);
            	return;
            }
			
            long check = (K-timesk)%2;
            
            if(check==1) {
            	System.out.println(D-amari);
            }else {
            	System.out.println(amari);            	
            }			
	}	
}

Compiler output:
Main.java:3: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include <iostream>
#include <algorithm>
using namespace std;

long long myabs(long long x) {
    if (x < 0)
        x *= -1;
    return x;
}

int main()
{
    long long pos;
    unsigned long long n, d;

    cin >> pos >> n >> d;
    pos = myabs(pos);

    if (pos >= n * d) {
        cout << pos - n * d << endl;
        return 0;
    }
    
    else {
     //10 8 2 のとき 0 3 2 と同じである  10 8 3  == 1 5 3
        n -= pos / d;
        pos -= (pos/d)*d;
    } 
 
    
   
        if (long long(pos - d) <= 0) {
            if (n % 2 == 0) {
                cout << myabs(pos) << endl;
                return 0;
            }
            else
                cout << myabs(pos - d) << endl;
            return 0;
        }
        pos = myabs(pos - d);
    
    cout << pos << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:13: error: expected primary-expression before 'long'
   32 |         if (long long(pos - d) <= 0) {
      |             ^~~~
a.cc:32:13: error: expected ')' before 'long'
   32 |         if (long long(pos - d) <= 0) {
      |            ~^~~~
      |             )
Language: Java

public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
			long X = sc.nextLong();
			long K = sc.nextLong();
			long D = sc.nextLong();
			long absX = Math.abs(X);
			long absD = Math.abs(D);
            long timesk = absX/absD;
            long amari = absX%absD;
            
            if(timesk>K) {
            	System.out.println(absX-K*D);
            }
			
            long check = (K-timesk)%2;
            
            if(check==1) {
            	System.out.println(D-amari);
            }else {
            	System.out.println(amari);            	
            }			
	}	
}

Compiler output:
Main.java:3: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;

int main(){
  ll x, k, d;
  cin >> x >> k >> d;
  x = abs(x);

  ll straight = min(k, x/d);
  k -= straight;
  x -= straight*D;

  if(k%2 == 0){
    cout << x << endl;
  }
  else{
      cout << d-x << endl;
  }
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: 'D' was not declared in this scope
   12 |   x -= straight*D;
      |                 ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll

int main(){
  ll x, k, d;
  cin >> x >> k >> d;
  x = abs(x);

  ll straight = min(k, x/d);
  k -= straight;
  x -= straight*D;

  if(k%2 == 0){
    cout << x << endl;
  }
  else{
      cout << d-x << endl;
  }
return 0;
}

Compiler output:
a.cc:5:1: error: expected initializer before 'int'
    5 | int main(){
      | ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;

int main(){
  ll x, k, d;
  cin >> x >> k >> d;
  x = abs(x);

  ll straight = min(k, x/d);
  k -= straight;
  x -= straight*D;

  if(k%2 == 0){
    cout << x << endl;
  }
  else{
      cout << d-x << endl;
  }
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'll' was not declared in this scope
    5 |   ll x, k, d;
      |   ^~
a.cc:6:10: error: 'x' was not declared in this scope
    6 |   cin >> x >> k >> d;
      |          ^
a.cc:6:15: error: 'k' was not declared in this scope
    6 |   cin >> x >> k >> d;
      |               ^
a.cc:6:20: error: 'd' was not declared in this scope
    6 |   cin >> x >> k >> d;
      |                    ^
a.cc:9:5: error: expected ';' before 'straight'
    9 |   ll straight = min(k, x/d);
      |     ^~~~~~~~~
      |     ;
a.cc:10:8: error: 'straight' was not declared in this scope
   10 |   k -= straight;
      |        ^~~~~~~~
a.cc:11:17: error: 'D' was not declared in this scope
   11 |   x -= straight*D;
      |                 ^
Language: C++

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> P;

#define all(x) (x).begin(), (x).end()
#define rep(i, n) for(int i = 0; i < (int)(n); i++)

/*-------------------------------------------------*/

int main(){
  ll x, k, d;
  cin >> x >> k >> d;
  ll a = x/d;
  x = abs(x);
  
  if(k <= a){
    cout << abs(x - k*d) << endl;
    return 0;
  }
  else{
    if(a%2 == k%2){
      cout << abs(x - a*d) << endl;
      return 0;
    }/*
    else{
      x = x - a*d;

      ll now = abs(x), post = abs(x - d);
      cout << min(now, post) << endl;
      return 0;
    }
  }*/
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:36:2: error: expected '}' at end of input
   36 | }
      |  ^
a.cc:12:11: note: to match this '{'
   12 | int main(){
      |           ^
Language: C++

#include<iostream>
#include<algorithm>
#include<iomanip>
#include<string>
#include<vector>

using namespace std;

typedef unsigned long long ULL;
typedef long long LL;

int main(){
    ULL X,K,D;
    ULL L;
    ULL ans;
    cin >> X >> K >> D;
    X = abs(X);
    L = X / D;
    if( L >= K ){
        ans = X - K * D;
    }else{
        ans = X % D;
        K -= L;
        if( K % 2 == 1){
            if( D - ans < ans + D){
               ans = D - ans;
            }else{
               ans = ans + D;
            }
        }
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:12: error: call of overloaded 'abs(ULL&)' is ambiguous
   17 |     X = abs(X);
      |         ~~~^~~
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/c++/14/ext/string_conversions.h:43,
                 from /usr/include/c++/14/bits/basic_string.h:4154,
                 from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/stdlib.h:980:12: note: candidate: 'int abs(int)'
  980 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
In file included from /usr/include/c++/14/cstdlib:81:
/usr/include/c++/14/bits/std_abs.h:137:3: note: candidate: 'constexpr __float128 std::abs(__float128)'
  137 |   abs(__float128 __x)
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:85:3: note: candidate: 'constexpr __int128 std::abs(__int128)'
   85 |   abs(__GLIBCXX_TYPE_INT_N_0 __x) { return __x >= 0 ? __x : -__x; }
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:79:3: note: candidate: 'constexpr long double std::abs(long double)'
   79 |   abs(long double __x)
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:75:3: note: candidate: 'constexpr float std::abs(float)'
   75 |   abs(float __x)
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:71:3: note: candidate: 'constexpr double std::abs(double)'
   71 |   abs(double __x)
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:61:3: note: candidate: 'long long int std::abs(long long int)'
   61 |   abs(long long __x) { return __builtin_llabs (__x); }
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:56:3: note: candidate: 'long int std::abs(long int)'
   56 |   abs(long __i) { return __builtin_labs(__i); }
      |   ^~~
Language: C++

#include <iostream>
#include <algorithm>
#include <utility>
#include <vector>
#include <string>
 
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define REP(i, n) for (int i = 0; i < (n); i++)
#define RREP(i, n) for (int i = (n) - 1; i >= 0; i--)
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define RFOR(i, a, b) for (int i = (a); i > (b); i--)
#define ALL(a) (a).begin(), (a).end()
 
int main() {
    int x,n,d;
    cin>>x>>n>>d;
	x=abs(x);
    if(x/d>=k)cout<<x-k*d;
    else {
      k-=x/d;
      if(k%2)cout<<d-x%d;
      else cout<<x%d;
    }
 
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:13: error: 'k' was not declared in this scope
   21 |     if(x/d>=k)cout<<x-k*d;
      |             ^
Language: C++

#include <iostream>
#include <algorithm>
#include <utility>
#include <vector>
#include <string>

using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define REP(i, n) for (int i = 0; i < (n); i++)
#define RREP(i, n) for (int i = (n) - 1; i >= 0; i--)
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define RFOR(i, a, b) for (int i = (a); i > (b); i--)
#define ALL(a) (a).begin(), (a).end()

int main() {
    int x,n,d;
    cin>>x>>n>>d;
	x=abs(x);
    if(x/d>=k)cout<<x-k*d;
    else {
      k-=x/d;
      if(k%2)cout<<d-x%d;
      else cout<<x%d;
    }

    int ans = 0;
    
    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:13: error: 'k' was not declared in this scope
   21 |     if(x/d>=k)cout<<x-k*d;
      |             ^
Language: C++

#include <iostream>
#include <string>
#include <cmath>
using namespace std;

#define rep(i,n) for (int i=0;i<(n); i++)

int main(){

    __int64 X,K,D;
    cin>>X>>K>>D;

    rep(i,K){
        if(abs(X-D) > abs(X+D)){
            X=X+D;
        }else{
            X=X-D;
        }
    }

    cout<<abs(X)<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: '__int64' was not declared in this scope; did you mean '__ynf64'?
   10 |     __int64 X,K,D;
      |     ^~~~~~~
      |     __ynf64
a.cc:11:10: error: 'X' was not declared in this scope
   11 |     cin>>X>>K>>D;
      |          ^
a.cc:11:13: error: 'K' was not declared in this scope
   11 |     cin>>X>>K>>D;
      |             ^
a.cc:11:16: error: 'D' was not declared in this scope
   11 |     cin>>X>>K>>D;
      |                ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define ALL(x) (x).begin(),(x).end()
#define COUT(x) cout<<(x)<<"\n"
#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define REP(i, n) for(int i=0;i<n;i++)
#define YES(x) cout<<(x?"YES":"NO")<<"\n"
#define Yes(x) cout<<(x?"Yes":"No")<<"\n"
#define dump(x) cout<<#x<<" = "<<(x)<<"\n"
#define endl "\n"
using G = vector<vector<int>>;
using M = map<int,int>;
using P = pair<int,int>;
using PQ = priority_queue<int>;
using PQG = priority_queue<int,vector<int>,greater<int>>;
using V = vector<int>;
using ll = long long;
using edge = struct { int to; int cost; };
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
const int INF = 1e9;
const int MOD = 1e9+7;
const ll LINF = 1e18;

void solver(ll x, ll k, ll d) {
  x = abs(x);
  ll c = x / d + (x%d > 0);

  if (k < c) {
    COUT(x - k*d);
    return 0;
  }

  // if x <= k*d
  if ( (k-c) % 2 == 0 ) {
    COUT( abs(x- d*c) );
  } else {
    COUT( abs(x- d*(c-1)) );
  }
}

int main() {
  IOS;
  ll x,k,d;
  cin >> x >> k >> d;
  solver(x,k,d);

  return 0;
}

Compiler output:
a.cc: In function 'void solver(ll, ll, ll)':
a.cc:31:12: error: return-statement with a value, in function returning 'void' [-fpermissive]
   31 |     return 0;
      |            ^
Language: C++

#include <iostream>
#include <string>
#include <vector>
using namespace std;

using ll = long long;

int main()
{
    ll X, K, D;
    cin >> X >> K >> D;
    ll i = 0;

    if (X >= 0)
    {
        if (X - K * D >= 0)
        {
            cout << X - K * D << endl;
        }
        else
        {
            if (K % 2 == (X / D) % 2)
            {
                cout << abs(X - (X/D)*D) << endl;
            }
            else
            {
                cout << abs(abs(X - (X/D)*D)-D) << endl;
            }
        }
    }

    if (X < 0)
    {
        if (X + K * D <= 0)
        {
            cout << abs(X + K * D) << endl;
        }
        else
        {
            if (K % 2 == (abs(X) / D) % 2)
            {
                cout << abs(X + (abs(X)/D)*D) << endl;
            }
            else
            {
                cout << abs(X + ((abs(X)/D)*D + D) << endl;
            }
        }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:47:52: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   47 |                 cout << abs(X + ((abs(X)/D)*D + D) << endl;
      |                             ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using pii = pair<int, int>;
using tiii = tuple<int, int, int>;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vpii = vector<pair<int, int>>;

int main()
{
  ll x, k, d;
  cin >> x >> k >> d;
  ll abs_x = abs(x);
  double a=log10(abs_x),b=log10(k),c=log10(d);
  ll y = (abs(x)) / d ;
  ll e=k-y;
 
 

  if (a > b + c)
  {
    cout << abs(abs_x - (k * d)) << endl;
  }
  else
  {
    if (e % 2 ==0 ){
       ll f=x-y*d;
      cout << abs( f ) << endl;
    }
    else{
      cout << abs( g ) << endl;
       ll g=x-y*d-d;
    }
  }
 
}


Compiler output:
a.cc: In function 'int main()':
a.cc:33:20: error: 'g' was not declared in this scope
   33 |       cout << abs( g ) << endl;
      |                    ^
Language: C

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using pii = pair<int, int>;
using tiii = tuple<int, int, int>;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vpii = vector<pair<int, int>>;

int main()
{
  ll x, k, d;
  cin >> x >> k >> d;
  ll abs_x = abs(x);
  double a=log10(abs_x),b=log10(k),c=log10(d);
  ll y = (abs(x)) / d ;
  ll e=k-y;
  ll f=x-y-d;
  ll g=x-y*d-d;

  if (a > b + c)
  {
    cout << abs_x - (k * d) << endl;
  }
  else
  {
    if (e % 2 ==0 ){
      cout << abs( f ) << endl;
    }
    else{
      cout << abs( g ) << endl;
    }
  }
 
}


Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
    long long x, k, d,min = 1000000000000000,count = 0;
    cin >> x >> k >> d;
    bool flag = 0;
    x = abs(x), k = abs(k), d = abs(d);
    for (int i = 0; i < k; i++){
        if(k > 100000000000000){
            if(x / d < k){
                x  %= d;
                k -= x/d;
            }
        if(abs(x - d) < abs(x + d))
        x = abs(x - d);
        else
        x = abs(x + d);
        if(min > x)min = x;
        else if(min == x)count ++;
        if(count > 2){
            k = k - i;
            flag = 1;
            break;
        }
    }
    if(k % 2 == 0 && flag){
        if(abs(x - d) < abs(x + d))
        x = abs(x - d);
        else
        x = abs(x + d);
        cout << abs(x) << endl;
        return 0;
    }
    if(min < x) x = min;
    cout << abs(x) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:37:2: error: expected '}' at end of input
   37 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^