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

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

int  main()
{

    unsigned long long x,k ,d ,ans = 0; 

    cin>>x>>k>>d; 
    if(x< 0 )
    {
        x *=-1 ; 

    }
    double q= (double) x/d; 



    if(q > k)
    {
        ans = x - k*d; 
    } 
    else 
    {
        
        k  -= x/d ;
    
        
        
         

        if(k%2 ==0 )
        {
            ans = x%d; 
        } 
        else
        {
            ans = abs( d - x%d) ; 
        }
        

        
    }

    cout<<ans; 


    





}

Compiler output:
a.cc: In function 'int main()':
a.cc:38:22: error: call of overloaded 'abs(long long unsigned int)' is ambiguous
   38 |             ans = abs( d - x%d) ;
      |                   ~~~^~~~~~~~~~
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:42,
                 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>
using namespace std;
#include<algorithm>
#include<vector>


int main(){
long long x,k,d;
cin>>x>>k>>d;
if(x<0)abs(x);
if(x/d>=k)cout<<x-dk<<endl;
else if(x/d<k)cout<<x-dk<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:19: error: 'dk' was not declared in this scope; did you mean 'd'?
   11 | if(x/d>=k)cout<<x-dk<<endl;
      |                   ^~
      |                   d
a.cc:12:23: error: 'dk' was not declared in this scope; did you mean 'd'?
   12 | else if(x/d<k)cout<<x-dk<<endl;
      |                       ^~
      |                       d
Language: C++

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


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

Compiler output:
a.cc: In function 'int main()':
a.cc:11:19: error: 'dk' was not declared in this scope; did you mean 'd'?
   11 | if(x/d>=k)cout<<x-dk<<endl;
      |                   ^~
      |                   d
a.cc:12:23: error: 'dk' was not declared in this scope; did you mean 'd'?
   12 | else if(x/d<k)cout<<x-dk<<endl;
      |                       ^~
      |                       d
Language: C++

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

int abs(int A){
  if(A<0) return -A;
  else return A;
}



int main(){
 long long X, K, D;
 cin >> X >> K >> D;
 
 if(X/D>=K) X=X-D*K;
  
 else { 
   if((K-X/D)%2==0) X=X-D*(X/D);
   else X=-(X-D*(X/D)-D)  
 }
  
  cout << X << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:25: error: expected ';' before '}' token
   21 |    else X=-(X-D*(X/D)-D)
      |                         ^
      |                         ;
   22 |  }
      |  ~
Language: C++

#include<iostream>
using namespace std;
int main (void)
{
  long long int x,k,d;
  cin>>x>>k>>d;
  
  if(x<0){x=-x;}
  if(x-K*d>0){cout<<x-k*d<<endl;return 0;}
  while(1)
  {
    if(x-d>0){x=x-d;k--;}
    else break;
    if(k==0)break;
  }
  if(k%2!=0){x=d-x;}
  
  cout<<x;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:8: error: 'K' was not declared in this scope
    9 |   if(x-K*d>0){cout<<x-k*d<<endl;return 0;}
      |        ^
Language: C++

X,K,D = map(int,input().split())
for i in range(K):
    if X >= 0:
        X -= D
    else:
        X += D
print(abs(X))

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

#include <bits/stdc++.h>
#define drep(i,cc,n) for(int i=(cc);i<=(n);++i)
#define rep(i,n) drep(i,0,(n)-1)
#define drrep(i,cc,n) for(int i=(cc);i>=(n);--i)
#define rrep(i,n) drrep(i,0,(n)-1)
#define sz(s) (int)(s.size())
#define vecprint(v) rep(i,v.size())if(i==0)cout << v[i];else cout << " " << v[i]; cout << endl;
#define arrprint(v,n) rep(i,n)if(i==0)cout << v[i];else cout << " " << v[i]; cout << endl;
#define matprint(v,n,m) rep(i,n){rep(j,m){cout << v[i][j] << " ";}cout << endl;}
#define SORT(v) sort(v.begin(), v.end())
#define REV(v) reverse(v.begin(), v.end())
using namespace std;
const int mod=1000000007;
const int INF=1001001001;
using ll = long long;
using P = pair<int,int>;
template<typename T>
using priority_queue_rev = priority_queue<T, vector<T>, greater<T>>; //小さいものから取り出す

int main(){
    ll x,k,d;
    cin >> x >> k >> d;
    x = abs(x);
    ll ans;
    if(k <= x/d){
        ans = x - k*d;
    }else{
        ll nokori = k - x/d;
        if(nokori%2 == 0)ans = x%d;
        else ans = ads(x%d-d);
        // ans = min(x%d,d-x%d);
    }

    cout << ans << endl;
//  printf("%.10f\n",ans);

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:20: error: 'ads' was not declared in this scope; did you mean 'ans'?
   30 |         else ans = ads(x%d-d);
      |                    ^~~
      |                    ans
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#define rep(i,n) for(int i = 0; i , (n); ++i)
using ll = long long;
using namespace std;
int sum(int n) {
    if (n == 0) {
        return 0;
    }

    int s = sum(n - 1);
    return s + n;
}
int main() {
    ll X, K, D, a, b, c, d;
    cin >> X >> K >> D;
    d = X;
    for (int i = 1;i < K+1;i++) {
        a = X + D;
        b = X - D;
        c = min(abs(a), abs(b));
        if (c < d) {
            d = c;
            X = d;
        }
        if (C == D) {
            cout << 0;
        }
        else {
            int e = K - i;
            e %= 2;
            if (e == 0) {
                cout << c;
                break;
            }
            else {
                cout << d;
                break;
            }
            
        }
    }
    //cout << X;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:13: error: 'C' was not declared in this scope
   27 |         if (C == D) {
      |             ^
Language: C++

#include <vector>
#include <algorithm>
#define rep(i,n) for(int i = 0; i , (n); ++i)
using ll = long long;
using namespace std;
int sum(int n) {
    if (n == 0) {
        return 0;
    }

    int s = sum(n - 1);
    return s + n;
}
int main() {
    ll X, K, D, a, b, c, d;
    cin >> X >> K >> D;
    d = X;
    for (int i = 1;i < K+1;i++) {
        a = X + D;
        b = X - D;
        c = min(abs(a), abs(b));
        if (c < d) {
            d = c;
            X = d;
        }
        else {
            int e = K - i;
            e %= 2;
            if (e= 0) {
                cout << c;
                break;
            }
            else {
                cout << d;
                break;
            }
            
        }
    }
    cout << X;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:5: error: 'cin' was not declared in this scope
   16 |     cin >> X >> K >> D;
      |     ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include <algorithm>
  +++ |+#include <iostream>
    3 | #define rep(i,n) for(int i = 0; i , (n); ++i)
a.cc:30:17: error: 'cout' was not declared in this scope
   30 |                 cout << c;
      |                 ^~~~
a.cc:30:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:34:17: error: 'cout' was not declared in this scope
   34 |                 cout << d;
      |                 ^~~~
a.cc:34:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:40:5: error: 'cout' was not declared in this scope
   40 |     cout << X;
      |     ^~~~
a.cc:40:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#define rep(i,n) for(int i = 0; i , (n); ++i)
using ll = long long;
using namespace std;
int sum(int n) {
    if (n == 0) {
        return 0;
    }

    int s = sum(n - 1);
    return s + n;
}
int main() {
    ll X, K, D, a, b, c, d;
    cin >> X >> K >> D;
    d = X;
    for (int i = 1;i < K+1;i++) {
        a = X + D;
        b = X - D;
        c = min(abs(a), abs(b));
        if (c < d) {
            d = c;
            X = d;
        }
        else {
            if (K-i % 2 = 0) {
                cout << c;
                break;
            }
            else {
                cout << d;
                break;
            }
            
        }
    }
    cout << X;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:18: error: lvalue required as left operand of assignment
   28 |             if (K-i % 2 = 0) {
      |                 ~^~~~~~
Language: C++

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

int main() {
  long long X, K, D;
  cin >> X >> K >> D;
  X = abs(X);
  
  if (X >= K * D) {
    cout << X - (K * D);
  } else {
    long long step = K - (X / D); // 残回数
    long long near = X % D
    if (step % 2 == 0) {
      cout << near;
    } else {
      cout << (near - D) * -1;
    }
  }
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:5: error: expected ',' or ';' before 'if'
   15 |     if (step % 2 == 0) {
      |     ^~
a.cc:17:7: error: 'else' without a previous 'if'
   17 |     } else {
      |       ^~~~
Language: C++

#include<iostream>
#include<string>
#include<algorithm>
#include<numeric>
#include<cmath>
#include<vector>
#include<iomanip>
#include<map>
#include<set>
#include<utility>
#include<iterator>
using namespace std;
#define ll long long
#define pb push_back
#define mp make_pair
//#define t ll t;cin>>t;while(t--)
#define nn cout<<endl;
#define ff(a,n) for(ll i=a;i<n;i++)
#define cY cout<<"YES\n"
#define cN cout<<"NO\n"
#define cy cout<<"Yes\n"
#define cn cout<<"No\n"
#define sc second
#define fs first
#define c(a) cout<<a<<endl

void solve()
{
	ll x, k, d; cin>>x>>k>>d;
	x=abs(x);
	if(x>=k*d)
		cout<<(ll)(x-(k*d));
	else
	{
		ll y=min(x/d, k) x=x-(y*d);
		k-=y;
		if(k%2==0)
			cout<<x;
		else cout<<abs(x-d);
	} 
}

int main()
{
	solve();
}
/*


1000000000000000 1000000000000000 1000000000000000

*/


Compiler output:
a.cc: In function 'void solve()':
a.cc:35:34: error: expected ',' or ';' before 'x'
   35 |                 ll y=min(x/d, k) x=x-(y*d);
      |                                  ^
Language: C++

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

using ll = long long;

const int INF = 1001001001;
const ll INF_LL = 1001001001001001001LL;

void solver1(ll X,ll k,ll d){
  //cout << "solver1" << endl;
  bool can = true;
  if(X<0 && X+k*d<-d) can = false;
  else if(X>0 && X-k*d>d) can = false;
  
  ll ans=INF_LL;
  if(!can){
    ans = X>0 ? abs(X-k*d):abs(X+k*d);
    cout << ans << endl;
    return ;
  }
  else{
    ll move = abs(X)/d;
    ll x = X>0 ? X-move*d:X+move*d;
    ll kk = k-move;
    if(kk%2==0) ans = x;
    else{
      ans = x>0 ? abs(x-d):abs(x+d);
    }

    cout << ans << endl;
    return ;
  }
}

void solver2(ll X,ll k,ll d){
  //cout << "solver2" << endl;
  ll x = X;
  for(ll i = 0;i<k;i++){
    x = x>0 ? x-d:x+d;
  }
  ll ans = abs(x);
  cout << ans << endl;
  return ;
}

int main(void){
  ll X,k,d; cin >> X >> k >> d;
  /*int tester;
    cin >> tester;*/
  x = abs(x);
  
  solver1(X,k,d);
  /*if(tester == 0) solver1(X,k,d);
    else solver2(X,k,d);*/
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:51:3: error: 'x' was not declared in this scope
   51 |   x = abs(x);
      |   ^
Language: C

#include<stdio.h>
int main(){
  int a,b,c,n,i,j,k,l;
  int p[150]={};
  for(i=0;i<150;i++){
    scanf("%d",p[i]);
  }
  for(i=0;i<150;i++){
    if(p[i]>p[i+1]){
      a=p[i];
      p[i]=p[i+1];
      p[i+1]=a;
    }
  }
  for(i=0;i<150;i++){
    if(p[i+2]>p[i+1]+p[i]){
      counter=counter+1;
      

Compiler output:
main.c: In function 'main':
main.c:17:7: error: 'counter' undeclared (first use in this function)
   17 |       counter=counter+1;
      |       ^~~~~~~
main.c:17:7: note: each undeclared identifier is reported only once for each function it appears in
main.c:17:7: error: expected declaration or statement at end of input
main.c:17:7: error: expected declaration or statement at end of input
main.c:17:7: error: expected declaration or statement at end of input
Language: C++

#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main()
{
    int x,k,d;
    cin>>x>>k>>d;
    x=abs(x);
    int dis=x/d;
    if (dis>k) cout<<x-k*d;
    else
    {
        k-=dis;
        if (k%2==0) cout<<x-dis*d;
        else cout<<abs(x-(dis+1)*d));
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:36: error: expected ';' before ')' token
   15 |         else cout<<abs(x-(dis+1)*d));
      |                                    ^
      |                                    ;
Language: C++

#include <iostream>

int main(){
  int x, k, d;
  std::cin>>x>>k>>d;
  
  x = (x>0) * x + (x<0) * (-x);
  
  while(x > 0 && k > 0){
    x -= d;
    k--;
  }
  
  if(k == 0){
    std::cout<<x;
  	return;
  }
  
  x = ((-x)<(x+d)) * (-x)  + ((-x)>=(x+d)) * (x+d);
  std::cout<<x;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   16 |         return;
      |         ^~~~~~
Language: C++

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

int main() {
    ll x, k, d;
    cin >> x >> k >> d;
    x = abs(x);
    if (__int128(k) * d <= x) {
        cout << x - k * d << endl;
    } else {
        k = k - x / d;
        x -= (x / d) * d;
        k = k % 2;
        cout << abs(x - k * d) << endl;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:5: error: 'll' was not declared in this scope
    5 |     ll x, k, d;
      |     ^~
a.cc:6:12: error: 'x' was not declared in this scope
    6 |     cin >> x >> k >> d;
      |            ^
a.cc:6:17: error: 'k' was not declared in this scope
    6 |     cin >> x >> k >> d;
      |                 ^
a.cc:6:22: error: 'd' was not declared in this scope
    6 |     cin >> x >> k >> d;
      |                      ^
Language: C

#include<bits/stdc++.h>
 
using namespace std;
#define ff first
#define ss second
#define pii pair<int, int>
#define pll pair<long long , long long>
#define pb push_back
#define ll long long
#define ld long double
#define precision(x,d) cout<<fixed<<setprecision(d)<<x
#define fill(a,b) memset((a),(b),sizeof((a)))
#define FAST ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);srand(time(NULL));
ll power(ll x,ll y,ll m){ll r=1;for(;y;y>>=1){if(y&1)r=r*x%m;x=x*x%m;}return r;}
const ll mod = 1e9 + 7;
 
int run_test(){
      ll x, k, d;
      cin >> x >> k >> d;
      ll ans = abs(x);
      if(x < 0){
            ll t = (x/d) * -1;
            if(t < k){
                  if(t % 2 ==0 && k % 2 ==0){
                        ans = min(ans, abs(x + d*t));
                  }
                  else if(t % 2== 1 && k%2 == 1){
                        ans = min(ans, abs(x + d*t));
                  }
                  else{
                        ans = min(ans, min(abs(x + d*(t-1)),abs(x + d*(t + 1))));
                  }
            }
            else{
                  ans = min(ans, abs(x + d*k));
            }
      }
      else{
            ll t = x/d;
            if(t < k){
                  if((t % 2 == 0 && k % 2 ==0) || (t % 2 == 1 && k % 2 == 1)){
                        ans = min(ans, abs(x - d*t));
                  }
                  else{
                        ans = min(ans, min(abs(x - d*(t-1)), abs(x - d*(t + 1))));
                  }
            }
            else{
                  ans = min(ans, abs(x- d*k));
            }
      }
      cout << ans;
      return 0;
}
 
int main(){
    FAST;
    ll t;
    t = 1;
 
    while(t--){
        run_test();
    }
}

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

#include<stdio.h>
#include<stdlib.h>
int main()
{
  int X,K,D;
  scanf("%d %d %d",&X,&K.&D);
  for(int i=0;i<K;i++)
  {
    if(abs(X-D)<=abs(X+D))
    {
      X-=X-D;
    }
    else
    {
      X-X+D;
    }
  }
  
    printf("%d",X);
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:6:26: error: expected identifier before '&' token
    6 |   scanf("%d %d %d",&X,&K.&D);
      |                          ^
Language: C

#include<stdio.h>
#include<stdlib.h>
int main()
{
  int X,K,D;
  scanf("%d %d %d",&X,&K.&D);
  for(int i=0;i<K;i++)
  {
    if(abs(X-D)<=abs(X+D))
    {
      X-=X-D;
    }
    else
    {
      X-X+D;
    }
  }
  
    print("%d",X);
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:6:26: error: expected identifier before '&' token
    6 |   scanf("%d %d %d",&X,&K.&D);
      |                          ^
main.c:19:5: error: implicit declaration of function 'print'; did you mean 'printf'? [-Wimplicit-function-declaration]
   19 |     print("%d",X);
      |     ^~~~~
      |     printf
Language: C++

# include <iostream>

using namespace std;

int main()
{
	long long int X, K, D;

	cin >> X >> K >> D;

	double help;

	help = (double)X / (double)D;

	int plus;

	if (X == D)
	{
		if (K % 2 == 0)
			cout << abs(X);
		else
			cout << 0;
	}
	else
	{
		if (round(help) > K)
		{
			for (int i = 0; i < K; i++)
			{
				X -= D;
			}
		}
		else
		{
			help = round(help);
			plus = K - help;
			
			if (plus % 2  != 0)
			{
				help++;
			}
			for (int i = 0; i < help; i++)
			{
				X -= D;
			}
		}

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

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:21: error: 'round' was not declared in this scope
   26 |                 if (round(help) > K)
      |                     ^~~~~
Language: C++

# include <iostream>

using namespace std;

int main()
{
	long long int X, K, D;

	cin >> X >> K >> D;

	double help;

	help = (double)X / (double)D;

	int plus;

	plus = round(help) + (K - round(help)) / 2;

	if (round(help) > K)
	{
		plus = K;
	}

	if (X == D)
	{
		if (K % 2 == 0)
			cout << abs(X);
		else
			cout << 0;
	}
	else
	{
		for (int i = 0; i < plus; i++)
		{
			X -= D;
		}
		for (int i = 0; i < K - plus; i++)
		{
			X += D;
		}
		cout << abs(X) << endl;
	}

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:16: error: 'round' was not declared in this scope
   17 |         plus = round(help) + (K - round(help)) / 2;
      |                ^~~~~
Language: Java

import java.util.Main;

public class hef {
	
	public static void main(String[] args) {
		
		Scanner s = new Scanner(System.in);
		long x = Math.abs(s.nextLong());
		long k = s.nextLong();
		long d = s.nextLong();
		
		long ans = x/d;
		if(ans>k) {
			System.out.println(x-k*d);
		}
		else {
			k-=ans;
			if(k%2==0) {
				System.out.println(x-ans*d);
			}
			else {
				System.out.println(Math.abs(x-ans*2*d));
			}
		}
		
		
	}
}


Compiler output:
Main.java:3: error: class hef is public, should be declared in a file named hef.java
public class hef {
       ^
Main.java:1: error: cannot find symbol
import java.util.Main;
                ^
  symbol:   class Main
  location: package java.util
Main.java:7: error: cannot find symbol
		Scanner s = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class hef
Main.java:7: error: cannot find symbol
		Scanner s = new Scanner(System.in);
		                ^
  symbol:   class Scanner
  location: class hef
4 errors
Language: C++

#include <algorithm>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <limits>
#include <map>
#include <queue>
#include <stack>
#include <vector>

using namespace std;

using Pair = pair<int, int>;
using lint = long long;

// const int mod = 1e9 + 7;
// const int mod = 998244353;

template <typename T> vector<T> make_v(size_t a) { return vector<T>(a); }

template <typename T, typename... Ts> auto make_v(size_t a, Ts... ts) {
  return vector<decltype(make_v<T>(ts...))>(a, make_v<T>(ts...));
}
template <class T>
inline bool chmax(T& a, T b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
template <class T>
inline bool chmin(T& a, T b) {
  if (a > b) {
    a = b;
    return 1;
  }
  return 0;
}
int main(){
  lint x,k,d;
  cin>>x>>k>>d;
  x=abs(x);
  if(k%2==1){
    x+=d;
    k++;
    d*=2;
  }
  lint ret=LLONG_MAX;
  if(x/d<=k)chmin(ret,x-x/d*d);
  else chmin(ret,x-d*k);
  if(x/d+1<=k)chmin(ret,abs(x-d*(x/d+1)));
  cout<<ret<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:49:12: error: 'LLONG_MAX' was not declared in this scope
   49 |   lint ret=LLONG_MAX;
      |            ^~~~~~~~~
a.cc:9:1: note: 'LLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    8 | #include <stack>
  +++ |+#include <climits>
    9 | #include <vector>
Language: C++

    #include <iostream>
    #include <bitset>

    using namespace std;

    int main() {
        long long x, k, d;
        cin >> x >> k >> d;
        int initsteps = x / d;
        /*while(k--) {
            if(abs(x - d) < abs(x + d)) {
                x = abs(x - d);
            }
            else if(abs(x + d) < abs(x - d)) {
                x = abs(x + d);
            }
            else if(abs(x) == abs(x - d) || abs(x) == abs(x + d)){
                break;
            }
        }*/
        if(k >= initsteps) {
            if(x > 0) {
                x -= initsteps * d;
                while(k--) {
                    if(abs(x - d) < abs(x + d)) {
                    x = abs(x - d);
                    }
                    else if(abs(x + d) < abs(x - d)) {
                    x = abs(x + d);
                    }
                    else if(abs(x) == abs(x - d) || abs(x) == abs(x + d)){
                    break;
                } 
            }
        }

            else if(x < 0) {
                x += initsteps * d;
                while(k--) {
                    if(abs(x - d) < abs(x + d)) {
                    x = abs(x - d);
                    }
                    else if(abs(x + d) < abs(x - d)) {
                    x = abs(x + d);
                    }
                    else if(abs(x) == abs(x - d) || abs(x) == abs(x + d)){
                    break;
                }
            }
            else {
                x = 0 + d;
            }
        }
    }

        else {
            if(x > 0) {
                x -= k * d;
            }
            else if(x < 0) {
                x += k *d;
            }
        }

        cout << x << endl;
    }


Compiler output:
a.cc: In function 'int main()':
a.cc:50:13: error: expected '}' before 'else'
   50 |             else {
      |             ^~~~
a.cc:37:28: note: to match this '{'
   37 |             else if(x < 0) {
      |                            ^
a.cc: At global scope:
a.cc:56:9: error: expected unqualified-id before 'else'
   56 |         else {
      |         ^~~~
a.cc:65:9: error: 'cout' does not name a type
   65 |         cout << x << endl;
      |         ^~~~
a.cc:66:5: error: expected declaration before '}' token
   66 |     }
      |     ^
Language: C++

    #include <iostream>
    #include <bitset>

    using namespace std;

    int main() {
        long long x, k, d;
        cin >> x >> k >> d;
        int initsteps = x / d;
        /*while(k--) {
            if(abs(x - d) < abs(x + d)) {
                x = abs(x - d);
            }
            else if(abs(x + d) < abs(x - d)) {
                x = abs(x + d);
            }
            else if(abs(x) == abs(x - d) || abs(x) == abs(x + d)){
                break;
            }
        }*/
        if(k >= initsteps) {
            if(x > 0) {
                x -= initsteps * d;
                while(k--) {
                    if(abs(x - d) < abs(x + d)) {
                    x = abs(x - d);
                    }
                    else if(abs(x + d) < abs(x - d)) {
                    x = abs(x + d);
                    }
                    else if(abs(x) == abs(x - d) || abs(x) == abs(x + d)){
                    break;
                } 
            }
            else if(x < 0) {
                x += initsteps * d;
                while(k--) {
                    if(abs(x - d) < abs(x + d)) {
                    x = abs(x - d);
                    }
                    else if(abs(x + d) < abs(x - d)) {
                    x = abs(x + d);
                    }
                    else if(abs(x) == abs(x - d) || abs(x) == abs(x + d)){
                    break;
                }
            }
            else {
                x = 0 + d;
            }
        }

        else {
            if(x > 0) {
                x -= k * d;
            }
            else if(x < 0) {
                x += k *d;
            }
        }

        cout << x << endl;
    }


Compiler output:
a.cc: In function 'int main()':
a.cc:35:13: error: expected '}' before 'else'
   35 |             else if(x < 0) {
      |             ^~~~
a.cc:22:23: note: to match this '{'
   22 |             if(x > 0) {
      |                       ^
a.cc:48:13: error: expected '}' before 'else'
   48 |             else {
      |             ^~~~
a.cc:35:28: note: to match this '{'
   35 |             else if(x < 0) {
      |                            ^
Language: C

#include <stdio.h>

long long abs(long long A);
int main(void)
{
    long long X,K,D,q,r,ans=0;
    scanf("%lld %lld %lld",&X,&K,&D);
    X=abs(X);
    D=abs(D);
    q=X/D;
    r=X%D;

    M=K-q;

    if(M<=0){
        ans=X-K*D;
        // printf("A");
    } else {
        if(M%2==0){
            ans=X%D;
            // printf("B");
        } else {
            ans=abs(D-X%D);
            // printf("C");
        }
    }
    printf("%lld",ans);
    return 0;
}

long long abs(long long A)
{
    if(A<0) A=(-1)*A;
    return A;
}


Compiler output:
main.c:3:11: warning: conflicting types for built-in function 'abs'; expected 'int(int)' [-Wbuiltin-declaration-mismatch]
    3 | long long abs(long long A);
      |           ^~~
main.c:2:1: note: 'abs' is declared in header '<stdlib.h>'
    1 | #include <stdio.h>
  +++ |+#include <stdlib.h>
    2 | 
main.c: In function 'main':
main.c:13:5: error: 'M' undeclared (first use in this function)
   13 |     M=K-q;
      |     ^
main.c:13:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>

long long abs(long long A);
int main(void)
{
    long long X,K,D,q,r,ans=0;
    scanf("%lld %lld %lld",&X,&K,&D);
    X=abs(X);
    D=abs(D);
    q=X/D;
    r=X%D;

    K-=q
    if(K<=0){
        ans=X-K*D;
        // printf("A");
    } else {
        if((K)%2==0){
            ans=X%D;
            // printf("B");
        } else {
            ans=abs(D-X%D);
            // printf("C");
        }
    }
    printf("%lld",ans);
    return 0;
}

long long abs(long long A)
{
    if(A<0) A=(-1)*A;
    return A;
}


Compiler output:
main.c:3:11: warning: conflicting types for built-in function 'abs'; expected 'int(int)' [-Wbuiltin-declaration-mismatch]
    3 | long long abs(long long A);
      |           ^~~
main.c:2:1: note: 'abs' is declared in header '<stdlib.h>'
    1 | #include <stdio.h>
  +++ |+#include <stdlib.h>
    2 | 
main.c: In function 'main':
main.c:13:9: error: expected ';' before 'if'
   13 |     K-=q
      |         ^
      |         ;
   14 |     if(K<=0){
      |     ~~
Language: C

#include <stdio.h>

long long abs(long long A);
int main(void)
{
    long long X,K,D,q,r,ans=0;
    scanf("%lld %lld %lld",&X,&K,&D);
    X=abs(X);
    D=abs(D);
    q=X/D;
    r=X%D;

    if(K<=q){
        ans=X-K*D;
        // printf("A");
    } else {
        if((k-q)%2==0){
            ans=r;
            // printf("B");
        } else {
            ans=abs(D-r);
            // printf("C");
        }
    }
    printf("%lld",ans);
    return 0;
}

long long abs(long long A)
{
    if(A<0) A=(-1)*A;
    return A;
}


Compiler output:
main.c:3:11: warning: conflicting types for built-in function 'abs'; expected 'int(int)' [-Wbuiltin-declaration-mismatch]
    3 | long long abs(long long A);
      |           ^~~
main.c:2:1: note: 'abs' is declared in header '<stdlib.h>'
    1 | #include <stdio.h>
  +++ |+#include <stdlib.h>
    2 | 
main.c: In function 'main':
main.c:17:13: error: 'k' undeclared (first use in this function)
   17 |         if((k-q)%2==0){
      |             ^
main.c:17:13: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include<iostream>
#include<cstdio>
#include<string>
#include<cmath>
#include<algorithm>
#include<vector>
#include<queue>
#include<stack>
using namespace std;
#define rep(i,ra,re) for((i)=ra;(i)<(re);(i)++)
#define _rep(i,ra,re) for((i)=ra;(i)>(re);(i)--)
#define rep_(i,ra,re) for((i)=ra;(i)<=(re);(i)++)
#define _rep_(i,ra,re) for((i)=ra;(i)>=(re);(i)--)
#define put(n) cout << n << " "; 
#define puts(n) cout << n << endl;
#define pu(n) cout << n;
#define mod 1000000007


int i,j,k,l;
static const int MAX_N=10e5;
int main(void){
	long　long x,k,d;cin >> x >> k >> d;
	x=(x>0?x:-x);
	if(k<=x/d){
		puts(x-k*d);
	}else{
		x=x%d;
		if((k-x/d)%2==1){
			puts(d-x);
		}else{
			puts(x);
		}
	}
	return 0;
}


Compiler output:
a.cc:23:9: error: extended character 　 is not valid in an identifier
   23 |         long　long x,k,d;cin >> x >> k >> d;
      |         ^
a.cc: In function 'int main()':
a.cc:23:9: error: 'long\U00003000long' was not declared in this scope
   23 |         long　long x,k,d;cin >> x >> k >> d;
      |         ^~~~~~~~~~
a.cc:23:33: error: 'x' was not declared in this scope
   23 |         long　long x,k,d;cin >> x >> k >> d;
      |                                 ^
a.cc:23:43: error: 'd' was not declared in this scope
   23 |         long　long x,k,d;cin >> x >> k >> d;
      |                                           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define take freopen("input.txt","r",stdin);freopen("output.txt","w",stdout);freopen("error.txt","w",stderr);
#define speed ios_base::sync_with_stdio(false);
#define int long long int
#define endl "\n"
#define maxi 10000007
#define rof(i,a,b) for(int i=a;i<b;i++)
// #define float long double
int32_t main()
{
    speed
    //take
    int x,k,d;
    cin>>x>>k>>d;
    if(d==0)
    {
        cout<<x;
        return 0;
    }
    long double t=(long double)x/((long double)2*d)+(long double)k/2.0;
    int q=ceil(t);
    int w=floor(t);
    int balance=INT_MAX;
  	balance=min(balance,abs(x+(k-q)*d-d*(q));
    balance=min(balance,abs(x+(k-w)*d-d*w));
                cout<<banalnce;
    
    
}

Compiler output:
a.cc: In function 'int32_t main()':
a.cc:25:49: error: expected ')' before ';' token
   25 |         balance=min(balance,abs(x+(k-q)*d-d*(q));
      |                    ~                            ^
      |                                                 )
a.cc:27:23: error: 'banalnce' was not declared in this scope; did you mean 'balance'?
   27 |                 cout<<banalnce;
      |                       ^~~~~~~~
      |                       balance
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);
	if(k>x/d)
		p=x/d;
	else
		p=k;
	k-=p;
	x-=p*d;
	if(d%2==0)
		cout<<x;
	else
		cout<<d-x;
	return 0;
	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:17: error: 'p' was not declared in this scope
   10 |                 p=x/d;
      |                 ^
a.cc:12:17: error: 'p' was not declared in this scope
   12 |                 p=k;
      |                 ^
a.cc:13:12: error: 'p' was not declared in this scope
   13 |         k-=p;
      |            ^
Language: C++

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


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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:4:5: error: 'll' was not declared in this scope
    4 |     ll x,k,d;
      |     ^~
a.cc:5:10: error: 'x' was not declared in this scope
    5 |     cin>>x>>k>>d;
      |          ^
a.cc:5:13: error: 'k' was not declared in this scope
    5 |     cin>>x>>k>>d;
      |             ^
a.cc:5:16: error: 'd' was not declared in this scope
    5 |     cin>>x>>k>>d;
      |                ^
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:5:22: error: 'h' was not declared in this scope
    5 |         cin>>x>>k>>d;h
      |                      ^
a.cc:12:45: error: 'u' was not declared in this scope
   12 |         if((k-kai)%2==0)cout<<x-d*kai<<endl;u
      |                                             ^
Language: C++

#include<iostream>
#include<mem.h>
#include<vector>
#include<algorithm>
#include<unordered_map>
#include<map>
#include<set>
#include<queue>

#include<stdlib.h>
using namespace std;
#define int long long



signed main()
{
      int n,k,d;
      cin>>n>>k>>d;
      n=abs(n);
      int q=n/d;
      int r=n%d;
      if(k==q)
        cout<<r<<endl;
      else if(k>q)
        {
            if((q%2)^(k%2))
                cout<<d-r<<endl;
            else
                cout<<r<<endl;
        }
      else
        cout<<n-k*d<<endl;
      return 0;

}


Compiler output:
a.cc:2:9: fatal error: mem.h: No such file or directory
    2 | #include<mem.h>
      |         ^~~~~~~
compilation terminated.
Language: C

#include<stdio.h>
#include<string.h>
#include<math.h>
#include <stdlib.h>
 
int main() {
    long x,k,d;
    scanf("%ld %ld %ld",&x,&k,&d);
    long t=labs(x/d);
    if (k>=t) {
        k=k-t;
        if(x>=0) {
          	x=x-t*d;
            if (k%2==1) x=labs(x-d);
          	else x=labs(x);
        } else {
          	x=x+t*d;
            if (k%2==1) x=labs(x+d);
          	else x=labs(X);
        }
    } else {
        if (x>=0) x=labs(x-k*d);
        else x=(x+k*d);
    }
    printf("%ld\n",x);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:19:29: error: 'X' undeclared (first use in this function)
   19 |                 else x=labs(X);
      |                             ^
main.c:19:29: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
#include<string.h>
#include<math.h>
#include <stdlib.h>
 
int main() {
    long x,k,d;
    scanf("%ld %ld %ld",&x,&k,&d);
    long t=labs(x/d);
    if (k>=t) {
        k=k-t;
        if(x>=0) {
          	x=x-t*d;
            if (k%2==1) x=labs(x-d);
        } else {
          	x=x+t*d;
            if (k%2==1) x=labs(x+d);
    } else {
        if (x>=0) x=x-k*d;
        else x=x+k*d;
    }
    printf("%ld\n",x);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:18:7: error: expected '}' before 'else'
   18 |     } else {
      |       ^~~~
Language: C

#include<stdio.h>
#include<string.h>
#include<math.h>
#include <stdlib.h>
 
int main() {
    long x,k,d;
    scanf("%ld %ld %ld",&x,&k,&d);
    long t=labs(x/d);
    if (k>=t) {
        k=k-t;
        if(x>=0) {
          	x=x-t*d;
            if (k%2==1) {
                x=labs(x-d);
        } else {
          	x=x+t*d;
            if (k%2==1) {
                x=labs(x+d);
        }
    } else {
        if (x>=0) x=x-k*d;
        else x=x+k*d;
    }
    printf("%ld",x);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:21:7: error: expected '}' before 'else'
   21 |     } else {
      |       ^~~~
main.c:27:1: error: expected declaration or statement at end of input
   27 | }
      | ^
Language: Java

import java.util.Scanner;

public class Main5 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long x = sc.nextLong();
		long k = sc.nextLong();
		long d = sc.nextLong();
		x = Math.abs(x);
		long p = x / d;
		if (p >= k) {
			x -= d * k;
			System.out.println(x);
		} else {
			x = x % d;
			if ((k - p) % 2 == 0) {
				System.out.println(x);
			} else {
				System.out.println(Math.abs(x - d));
			}
		}
	}

}

Compiler output:
Main.java:3: error: class Main5 is public, should be declared in a file named Main5.java
public class Main5 {
       ^
1 error
Language: Java

import java.util.*;

public class Main5 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long x = sc.nextLong();
		long k = sc.nextLong();
		long d = sc.nextLong();
		if (x <= 0) {
			for (long i = 0; i <= k; i++) {
				if (x <= 0) {
					x += d;
				} else {
					x -= d;
				}
			}
		} else {
			for (long i = 0; i <= k; i++) {
				if (x <= 0) {
					x += d;
				} else {
					x -= d;
				}
			}
		}
		System.out.println(Math.abs(x));

	}
}

Compiler output:
Main.java:3: error: class Main5 is public, should be declared in a file named Main5.java
public class Main5 {
       ^
1 error
Language: Java

import java.util.*;
public class Main5 {
	public static void main(String[] args) {
		Scanner sc =new Scanner(System.in);
		long x=sc.nextLong();
		long k=sc.nextLong();
		long d=sc.nextLong();
		if(x<=0) {
			for(long i=0;i<=k;i++) {
				if(x<=0) {
				x+=d;
				}
				else {
					x-=d;
				}
			}
		}
		else {
			for(long i=0;i<=k;i++) {
				if(x<=0) {
				x+=d;
				}
				else {
					x-=d;
				}
			}
		}
		System.out.println(x);
		
	}
}

Compiler output:
Main.java:2: error: class Main5 is public, should be declared in a file named Main5.java
public class Main5 {
       ^
1 error
Language: C

main(){long longint x,k,d,a;
scanf("%lld%lld%lld",&x,&k,&d);x=llabs(x);
if(k*d<=x){a=x-k*d;}
else{a=x%d;if((k-x/d)%2==1)a=d-a;}
 printf("%lld",a);}


Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(){long longint x,k,d,a;
      | ^~~~
main.c: In function 'main':
main.c:1:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'x'
    1 | main(){long longint x,k,d,a;
      |                     ^
main.c:1:21: error: 'x' undeclared (first use in this function)
main.c:1:21: note: each undeclared identifier is reported only once for each function it appears in
main.c:1:23: error: 'k' undeclared (first use in this function)
    1 | main(){long longint x,k,d,a;
      |                       ^
main.c:1:25: error: 'd' undeclared (first use in this function)
    1 | main(){long longint x,k,d,a;
      |                         ^
main.c:1:27: error: 'a' undeclared (first use in this function)
    1 | main(){long longint x,k,d,a;
      |                           ^
main.c:2:1: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    2 | scanf("%lld%lld%lld",&x,&k,&d);x=llabs(x);
      | ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | main(){long longint x,k,d,a;
main.c:2:1: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    2 | scanf("%lld%lld%lld",&x,&k,&d);x=llabs(x);
      | ^~~~~
main.c:2:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:2:34: error: implicit declaration of function 'llabs' [-Wimplicit-function-declaration]
    2 | scanf("%lld%lld%lld",&x,&k,&d);x=llabs(x);
      |                                  ^~~~~
main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'llabs'
  +++ |+#include <stdlib.h>
    1 | main(){long longint x,k,d,a;
main.c:2:34: warning: incompatible implicit declaration of built-in function 'llabs' [-Wbuiltin-declaration-mismatch]
    2 | scanf("%lld%lld%lld",&x,&k,&d);x=llabs(x);
      |                                  ^~~~~
main.c:2:34: note: include '<stdlib.h>' or provide a declaration of 'llabs'
main.c:5:2: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    5 |  printf("%lld",a);}
      |  ^~~~~~
main.c:5:2: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:5:2: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:5:2: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

main(){long longint x,k,d,a;
scanf("%lld%lld%lld",&x,&k,&d);x=labs(x);
if(k*d<=x){a=x-k*d;}
else{a=x%d;if((k-x/d)%2==1)a=d-a;}
 printf("%lld",a);}


Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(){long longint x,k,d,a;
      | ^~~~
main.c: In function 'main':
main.c:1:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'x'
    1 | main(){long longint x,k,d,a;
      |                     ^
main.c:1:21: error: 'x' undeclared (first use in this function)
main.c:1:21: note: each undeclared identifier is reported only once for each function it appears in
main.c:1:23: error: 'k' undeclared (first use in this function)
    1 | main(){long longint x,k,d,a;
      |                       ^
main.c:1:25: error: 'd' undeclared (first use in this function)
    1 | main(){long longint x,k,d,a;
      |                         ^
main.c:1:27: error: 'a' undeclared (first use in this function)
    1 | main(){long longint x,k,d,a;
      |                           ^
main.c:2:1: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    2 | scanf("%lld%lld%lld",&x,&k,&d);x=labs(x);
      | ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | main(){long longint x,k,d,a;
main.c:2:1: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    2 | scanf("%lld%lld%lld",&x,&k,&d);x=labs(x);
      | ^~~~~
main.c:2:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:2:34: error: implicit declaration of function 'labs' [-Wimplicit-function-declaration]
    2 | scanf("%lld%lld%lld",&x,&k,&d);x=labs(x);
      |                                  ^~~~
main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'labs'
  +++ |+#include <stdlib.h>
    1 | main(){long longint x,k,d,a;
main.c:2:34: warning: incompatible implicit declaration of built-in function 'labs' [-Wbuiltin-declaration-mismatch]
    2 | scanf("%lld%lld%lld",&x,&k,&d);x=labs(x);
      |                                  ^~~~
main.c:2:34: note: include '<stdlib.h>' or provide a declaration of 'labs'
main.c:5:2: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    5 |  printf("%lld",a);}
      |  ^~~~~~
main.c:5:2: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:5:2: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:5:2: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C++

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

int main(){
  long long X;
  long long K;
  long long D;
  cin >> X >> K >> D;
  long long N = X/D;
  if(X < 0) X *= -1;
  if(D <= X/K) X -= K*D
  else{
    //if((N-K)%2 == 0) cout << X%D << endl;
    //else cout << D-X%D << endl;
    X -= N*D;
    K -= N;
    //if(K%2 == 0) cout << X << endl;
    //else cout << abs(X-D) << endl;
    if(K%2) X = abs(X-D);
  }
  cout << X << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:24: error: expected ';' before 'else'
   11 |   if(D <= X/K) X -= K*D
      |                        ^
      |                        ;
   12 |   else{
      |   ~~~~
Language: C++

#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("fast-math")
#pragma GCC optimize("trapv")
#pragma GCC target("sse4")

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

#define deb(x) cout << #x << " is " << x << "\n"
#define int long long
#define mod 1000000007
#define PI acos(-1)

void solve() {
	int d, n, k;
	cin >> n >> k >> d;
	
	if (n < 0) n = -n;
	
	if (n / d < k) {
		int rest = k - n / d;
		if (rest % 2 == 0) ans = n % d;
		else ans = d - n % d;
	} else {
		ans = n - d * k;
	}
	cout << ans << '\n';
}

int32_t main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
#ifndef ONLINE_JUDGE
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);
#endif
	int tc = 1;
	// cin >> tc;
	while(tc--) {
	    solve();
	}
	return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:25:36: error: 'ans' was not declared in this scope; did you mean 'abs'?
   25 |                 if (rest % 2 == 0) ans = n % d;
      |                                    ^~~
      |                                    abs
a.cc:26:22: error: 'ans' was not declared in this scope; did you mean 'abs'?
   26 |                 else ans = d - n % d;
      |                      ^~~
      |                      abs
a.cc:28:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   28 |                 ans = n - d * k;
      |                 ^~~
      |                 abs
a.cc:30:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   30 |         cout << ans << '\n';
      |                 ^~~
      |                 abs