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

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

int main() {

  int n, k; cin >> n >> k;
  
  long long v = k;
  for(int i=1; i<n; i++){
    v *= (k-1);
  }
  
  cout << v << endl;
  
}
¥

Compiler output:
a.cc:16:1: error: extended character ¥ is not valid in an identifier
   16 | ¥
      | ^
a.cc:16:1: error: '\U000000a5' does not name a type
   16 | ¥
      | ^
Language: C++

#include<bits/stdc++.h>
#include <iostream>
#include <string>
#include <cmath>
using namespace std;
#define ll long long
#define rep(i, n) for (ll i = 0; i < (n); i++)
#define FOR(i,a,b) for(ll i=(a);i<(b);i++)
#define FORR(i,a,b)for(ll i=(a);i<=(b);i++)
#define repR(i,n) for(ll i=n;i>=0;i--)
#define all(v)(v).begin(),(v).end()
#define rall(v)(v).rbegin(),(v).rend()
#define F first
#define S second
#define pb push_back
#define pu push
#define COUT(x) cout<<(x)<<endl
#define PQ priority_queue<ll>
#define PQR priority_queue<ll,vector<ll>,greater<ll>>
#define YES(n) cout << ((n) ? "YES" : "NO"  ) << endl
#define Yes(n) cout << ((n) ? "Yes" : "No"  ) << endl
#define mp make_pair
#define maxs(x,y) (x = max(x,y))
#define mins(x,y) (x = min(x,y))
#define sz(x) (int)(x).size()
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const ll MOD = 1000000007LL;
const ll INF = 1LL << 60;
using vll = vector<ll>;
using vb = vector<bool>;
using vvb = vector<vb>;
using vvll = vector<vll>;
using vstr = vector<string>;
using pll = pair<ll, ll>;
int main(){
  ll n,k;
  cin>>n>>k;
  ans=k;
  rep(i,n-1){
    ans*=(k-1);
  }
  COUT(ans);
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:39:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
   39 |   ans=k;
      |   ^~~
      |   abs
Language: Java

import java.util.*;

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

    int n = sc.nextInt();
    int k = sc.nextInt();
    int ans = k;

    for (i = 0; i<n-1; i++) {
      ans *= (k-1);
    }

    System.out.println(ans);
  }
}

Compiler output:
Main.java:11: error: cannot find symbol
    for (i = 0; i<n-1; i++) {
         ^
  symbol:   variable i
  location: class Main
Main.java:11: error: cannot find symbol
    for (i = 0; i<n-1; i++) {
                ^
  symbol:   variable i
  location: class Main
Main.java:11: error: cannot find symbol
    for (i = 0; i<n-1; i++) {
                       ^
  symbol:   variable i
  location: class Main
3 errors
Language: C++

/******************************************************************************

                              Online C++ Compiler.
               Code, Compile, Run and Debug C++ program online.
Write your code in this editor and press "Run" button to compile and execute it.

*******************************************************************************/

#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
using namespace std;
using ll=long long;
using ld=long double;
const ll LL_MAX=LLONG_MAX;
struct In{
    template<typename T>
    T operator()(){
        T x;
        cin >> x;
        return x;
    }
};

template <typename T,typename U>
void forin(T* x,U n){
    for (U i=0;i<n;i++) cin >> x[i];
}

template <typename T>
int div1(T x) {
    return x%1000000007;
}

template <typename T>
void out(T x){
    cout << x << endl;
}

main(){
    In in;
    int n=in<int>(),k=in<int>();
    out(k*pow((double)(k-1),n));
}







Compiler output:
a.cc:39:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   39 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:41:14: error: expected primary-expression before 'int'
   41 |     int n=in<int>(),k=in<int>();
      |              ^~~
a.cc:42:9: error: 'k' was not declared in this scope
   42 |     out(k*pow((double)(k-1),n));
      |         ^
Language: C++

/******************************************************************************

                              Online C++ Compiler.
               Code, Compile, Run and Debug C++ program online.
Write your code in this editor and press "Run" button to compile and execute it.

*******************************************************************************/

#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
using namespace std;
using ll=long long;
using ld=long double;
const ll LL_MAX=LLONG_MAX;
struct In{
    template<typename T>
    T operator()(){
        T x;
        cin >> x;
        return x;
    }
};

template <typename T,typename U>
void forin(T* x,U n){
    for (U i=0;i<n;i++) cin >> x[i];
}

template <typename T>
int div1(T x) {
    return x%1000000007;
}

template <typename T>
void out(T x){
    cout << x << endl;
}

main(){
    In in;
    int n=in(),k=in();
    out(k*pow((double)(k-1),n));
}







Compiler output:
a.cc:39:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   39 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:41:13: error: no match for call to '(In) ()'
   41 |     int n=in(),k=in();
      |           ~~^~
a.cc:17:7: note: candidate: 'template<class T> T In::operator()()'
   17 |     T operator()(){
      |       ^~~~~~~~
a.cc:17:7: note:   template argument deduction/substitution failed:
a.cc:41:13: note:   couldn't deduce template parameter 'T'
   41 |     int n=in(),k=in();
      |           ~~^~
a.cc:42:9: error: 'k' was not declared in this scope
   42 |     out(k*pow((double)(k-1),n));
      |         ^
Language: C++

#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
using namespace std;
using ll=long long;
using ld=long double;
const ll LL_MAX=LLONG_MAX;
struct in{
    template<typename T>
    T operator()(){
        T x;
        cin >> x;
        return x;
    }
};

template <typename T,typename U>
void forin(T* x,U n){
    for (U i=0;i<n;i++) cin >> x[i];
}

template <typename T>
int div1(T x) {
    return x%1000000007;
}

template <typename T>
void out(T x){
    cout << x << endl;
}

main(){
    int n=in(),k=in();
    out(k*pow((double)(k-1),n));
}

Compiler output:
a.cc:31:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   31 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:32:11: error: cannot convert 'in' to 'int' in initialization
   32 |     int n=in(),k=in();
      |           ^~~~
      |           |
      |           in
a.cc:32:18: error: cannot convert 'in' to 'int' in initialization
   32 |     int n=in(),k=in();
      |                  ^~~~
      |                  |
      |                  in
Language: C++

#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
using namespace std;
using ll=long long;
using ld=long double;
const ll LL_MAX=LLONG_MAX;
struct in{
    template<typename T>
    T operator(){
        T x;
        cin >> x;
        return x;
    }
};

template <typename T,typename U>
void forin(T* x,U n){
    for (U i=0;i<n;i++) cin >> x[i];
}

template <typename T>
int div1(T x) {
    return x%1000000007;
}

template <typename T>
void out(T x){
    cout << x << endl;
}

main(){
    int n=in(),k=in();
    out(k*pow(k-1,n));
}


Compiler output:
a.cc:10:11: error: expected primary-expression before 'x'
   10 |         T x;
      |           ^
a.cc:10:11: error: expected '}' before 'x'
a.cc:9:17: note: to match this '{'
    9 |     T operator(){
      |                 ^
a.cc:9:7: error: declaration of 'operator()' as non-function
    9 |     T operator(){
      |       ^~~~~~~~
a.cc:11:9: error: 'cin' does not name a type; did you mean 'in'?
   11 |         cin >> x;
      |         ^~~
      |         in
a.cc:12:9: error: expected unqualified-id before 'return'
   12 |         return x;
      |         ^~~~~~
a.cc:13:6: error: expected ';' after struct definition
   13 |     }
      |      ^
      |      ;
a.cc:14:1: error: expected declaration before '}' token
   14 | };
      | ^
a.cc:31:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   31 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:32:11: error: cannot convert 'in' to 'int' in initialization
   32 |     int n=in(),k=in();
      |           ^~~~
      |           |
      |           in
a.cc:32:18: error: cannot convert 'in' to 'int' in initialization
   32 |     int n=in(),k=in();
      |                  ^~~~
      |                  |
      |                  in
Language: C

#include <stdio.h>
int main(void){
int a,b,c,i;
scanf("%d",&a);
scanf("%d",&b);
  c=b;
  for (i=0;i<a,i++){
    c*=(b-1);
  }
printf("%d",c);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:19: error: expected ';' before ')' token
    7 |   for (i=0;i<a,i++){
      |                   ^
      |                   ;
Language: C

#include <stdio.h>
int main(void){
int a,b,c,i;
scanf("%d",&a);
scanf("%d",&b);
  c=b;
  for(i=0;i<a,i++){
    c*=(b-1);
  }
printf("%d",c);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:18: error: expected ';' before ')' token
    7 |   for(i=0;i<a,i++){
      |                  ^
      |                  ;
Language: C

#include <stdio.h>
int main(void){
int a,b,c,i;
scanf("%d",a);
scanf("%d",b);
  c=b;
  for(i=0;i<a,i++){
    c*=(b-1);
  }
printf("%d",c);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:18: error: expected ';' before ')' token
    7 |   for(i=0;i<a,i++){
      |                  ^
      |                  ;
Language: C

#include <stdio.h>
int main(void){
int a,b,c,i;
scanf("%d",a);
scanf("%d",b);
  c=b;
  for(i=0;i<a-1,i++){
    c*=(b-1);
  }
printf("%d",c);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:20: error: expected ';' before ')' token
    7 |   for(i=0;i<a-1,i++){
      |                    ^
      |                    ;
Language: C

#include <stdio.h>
int main(void){
int a,b,c,i;
scanf("%d",a);
scanf("%d",b);
  c=b;
  for (i=0;i<a-1,i++)
  {
    c*=(b-1);
  }
printf("%d",c);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:21: error: expected ';' before ')' token
    7 |   for (i=0;i<a-1,i++)
      |                     ^
      |                     ;
Language: C

#include <stdio.h>
int main(void){
int a,b,c,i;
scanf("%d",a);
scanf("%d",b);
  c=b;
  for (i=0;i<a-1,i++);
  {
    c*=(b-1);
  }
printf("%d",c);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:21: error: expected ';' before ')' token
    7 |   for (i=0;i<a-1,i++);
      |                     ^
      |                     ;
Language: C

#include <stdio.h>
int main(void){
int a,b,c,i;
scanf("%d",a);
scanf("%d",b);
  for (i=0;i<a-1,i++);
  {
    b*=(b-1);
  }
//c=b*(b-1)^(a-1);
printf("%d",b);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:21: error: expected ';' before ')' token
    6 |   for (i=0;i<a-1,i++);
      |                     ^
      |                     ;
Language: C

#include <stdio.h>
int main(void){
int a,b,c,i;
scanf("%d",a);
scanf("%d",b);
  for (i=0;i<a-1,i++)
  {
    b*=(b-1);
  }
//c=b*(b-1)^(a-1);
printf("%d",b);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:21: error: expected ';' before ')' token
    6 |   for (i=0;i<a-1,i++)
      |                     ^
      |                     ;
Language: C++

#include <cstdio>
#include <math.h>

int main() {
	double N,K;
	scanf_s("%lf", &N);
	scanf_s("%lf", &K);


	
	printf("%d", (int)( K * pow(K-1,N-1)));
	

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    6 |         scanf_s("%lf", &N);
      |         ^~~~~~~
      |         scanf
Language: C

include <stdio.h>
int main(void){
int a,b,c;
scanf("%d",a);
scanf("%d",b);
c=b*(b-1)^(a-1);
printf("%d",c);
return 0;
}

Compiler output:
main.c:1:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include <stdio.h>
      |         ^
Language: C++

#include<stdio.h>
int main(){
  int N, K, c;
  scanf("%d %d", &N, &K);
  c = K;
  for(int i = 0; i < n - 1; i++){
    c *= (K - 1);
  }
  printf("%d", c);
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:22: error: 'n' was not declared in this scope
    6 |   for(int i = 0; i < n - 1; i++){
      |                      ^
Language: C++

#include<cstdio>

int main(){
  int n;
  scanf("%d",&d);
  int k;
  scanf("%d",%k);
  int ans=k;
  for(int i=1;i<n;i++){
    ans*=(k-1);
  }
  printf("%d",ans);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:15: error: 'd' was not declared in this scope
    5 |   scanf("%d",&d);
      |               ^
a.cc:7:14: error: expected primary-expression before '%' token
    7 |   scanf("%d",%k);
      |              ^
Language: C++

#include <cstdio>
int main()
  int N, K;
  scanf("%d %d", &N, &K);
  printf("%d", K*((K-1)^(N-1)));
  return 0;
}

Compiler output:
a.cc:3:3: error: expected initializer before 'int'
    3 |   int N, K;
      |   ^~~
a.cc:4:8: error: expected constructor, destructor, or type conversion before '(' token
    4 |   scanf("%d %d", &N, &K);
      |        ^
a.cc:5:9: error: expected constructor, destructor, or type conversion before '(' token
    5 |   printf("%d", K*((K-1)^(N-1)));
      |         ^
a.cc:6:3: error: expected unqualified-id before 'return'
    6 |   return 0;
      |   ^~~~~~
a.cc:7:1: error: expected declaration before '}' token
    7 | }
      | ^
Language: C++

import java.lang.Math.pow
import java.util.*

fun main(args: Array<String>) {
    val sc = Scanner(System.`in`)
    val n = sc.nextDouble()
    val k = sc.nextDouble()
    val ans = pow(k - 1, n - 1) * k

    println("${ans.toLong()}")
}

Compiler output:
a.cc:5:29: error: stray '`' in program
    5 |     val sc = Scanner(System.`in`)
      |                             ^
a.cc:5:32: error: stray '`' in program
    5 |     val sc = Scanner(System.`in`)
      |                                ^
a.cc:1:1: error: 'import' does not name a type
    1 | import java.lang.Math.pow
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: Java

import java.util.*;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    long n = sc.nextLong();
    long k = sc.nextLong();
    long sum = k;

    for (int = 0; i < n-1; i++) {
      sum *= (k-1);
    }

    System.out.println(sum);
  }

}


Compiler output:
Main.java:11: error: not a statement
    for (int = 0; i < n-1; i++) {
         ^
Main.java:11: error: ';' expected
    for (int = 0; i < n-1; i++) {
            ^
Main.java:11: error: illegal start of expression
    for (int = 0; i < n-1; i++) {
             ^
Main.java:11: error: not a statement
    for (int = 0; i < n-1; i++) {
                    ^
Main.java:11: error: ')' expected
    for (int = 0; i < n-1; i++) {
                         ^
Main.java:11: error: ';' expected
    for (int = 0; i < n-1; i++) {
                              ^
6 errors
Language: C++

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        final int N = sc.nextInt();
        final int K = sc.nextInt();
        int ans = 1;
        for(int i=0; i<N; i++) {
            if(i == 0) ans *= K;
            else ans *= K-1;
        }
        System.out.println(ans);
    }
}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int N,K;
  cin >> N >> K;
  int sum = 1;
  int a = 1;
  for (int i = 1; i <= N; i++){
    sum *= i;
  }
  for (int i = 1; i <= K; i++){
    a *= i;
  }
  int A = sum / a;
  
  cout <<  << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:12: error: expected primary-expression before '<<' token
   16 |   cout <<  << endl;
      |            ^~
Language: C++

#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<int, int> P; int main() { cin.tie(0); ios::sync_with_stdio(false); 
int n, k;
cin >> n>> k;
int u=1;
for (int i = k; i >=k-2; i--) { 
u *= i;
}
cout << u << endl; return 0; }


Compiler output:
a.cc:1:26: warning: extra tokens at end of #include directive
    1 | #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<int, int> P; int main() { cin.tie(0); ios::sync_with_stdio(false);
      |                          ^~~~~
a.cc:3:1: error: 'cin' does not name a type
    3 | cin >> n>> k;
      | ^~~
a.cc:5:1: error: expected unqualified-id before 'for'
    5 | for (int i = k; i >=k-2; i--) {
      | ^~~
a.cc:5:17: error: 'i' does not name a type
    5 | for (int i = k; i >=k-2; i--) {
      |                 ^
a.cc:5:26: error: 'i' does not name a type
    5 | for (int i = k; i >=k-2; i--) {
      |                          ^
a.cc:8:1: error: 'cout' does not name a type
    8 | cout << u << endl; return 0; }
      | ^~~~
a.cc:8:20: error: expected unqualified-id before 'return'
    8 | cout << u << endl; return 0; }
      |                    ^~~~~~
a.cc:8:30: error: expected declaration before '}' token
    8 | cout << u << endl; return 0; }
      |                              ^
Language: C++

#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

int main(){
  int N; K;
  cin >> N >> K;
  
  long long int ans = N;
  for(int i = 0; i < K - 1; i++) ans *= (N-1);
  cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:10: error: 'K' was not declared in this scope
    8 |   int N; K;
      |          ^
Language: C++

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

int main() {
  int a,b;
 
  cin >> a >>b  ;
  
  int c = 1;
  
  for (int i = 0; i <b ;i++)
    c *= (a-1);
  
  cout << c << endl;
  


}​


Compiler output:
a.cc:18:2: error: '\U0000200b' does not name a type
   18 | }​
      |
Language: C++

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

int main() {
  int a,b;
 
  cin >> a >>b  ;
  
  
  cout << b*((b-1)^(a-1)) << endl;
  




Compiler output:
a.cc: In function 'int main()':
a.cc:10:35: error: expected '}' at end of input
   10 |   cout << b*((b-1)^(a-1)) << endl;
      |                                   ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
 
typedef unsigned long long int ull;
typedef long double ldb;
typedef long long int ll;
 
#define for01(k,n)  for (ll i=k; i<n; i++)
#define for02(k,n)  for (ll j=k; j<n; j++)
#define for03(k,n)  for (ll k=k; k<n; k++)
#define for11(k,n)  for (ll i=k; i<=n; i++)
#define for12(k,n)  for (ll j=k; j<=n; j++)
#define for13(k,n)  for (ll k=k; k<=n; k++)
 
#define pb push_back
#define mp make_pair
#define pf push_front
#define popf pop_front
#define popb pop_back
#define vll vector<ll>
#define F first
#define S second
#define pp pair <ll, ll>
#define lb lower_bound
#define ub upper_bound
#define emp empty()
#define beg begin()
#define en end()
#define si size()
#define bk back()
#define deci(n)  fixed<<setprecision(n)
 
#define p0(a) cout << a << " "
#define p1(a) cout << a << "\n"
 
 
#define MAX LLONG_MAX
 
#define MIN LLONG_MIN
 
using namespace std;

int main()
{
  ll n,k;
  cin >> n >> k;
  
  if(k >= n)
  {
    ll p = k;
    for(ll i = 0; i<n;i++)
      p = p * (k-1);
  }
  else
  {
    ll p = 1;
    for(ll i = 1 ; i <= n; i++)
      p = p * i;
  }
  
  p1(p); 
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:60:6: error: 'p' was not declared in this scope
   60 |   p1(p);
      |      ^
a.cc:33:23: note: in definition of macro 'p1'
   33 | #define p1(a) cout << a << "\n"
      |                       ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
 
int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
 
    ll N, K; cin >> N >> K;
 
    cout << K * pow((K - 1), N - 1)) << endl;
 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:36: error: expected ';' before ')' token
   11 |     cout << K * pow((K - 1), N - 1)) << endl;
      |                                    ^
      |                                    ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
typedef long long ll;

int main() {
    int N, K;
    cin >> N >> K;
    ans = K;
    for (int i = 1; i < N; i++){
        ans *= K - 1;
    }
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   10 |     ans = K;
      |     ^~~
      |     abs
Language: C++

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

int main() {
  int n, k;
  cin >> n >> k;
  
  int c = 1;
  for(i=0; i<n; i++){
    if(i==0){
      c *= k;
    }else if(i<n-1){
      c *= (k-1);
    }else{
      c *= (k-2);
    }
  }  
  
  cout << c << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: 'i' was not declared in this scope
    9 |   for(i=0; i<n; i++){
      |       ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int sum(vector<int> scores) {
  int a=0;
  for(int i=0;i<scores.size();i++){
    a+=scores.at(i);
  }
  return a;
}

void output(int sum_a, int sum_b, int sum_c) {
  cout<<sum_a*sum_b*sum_c<<endl;
}

vector<int> input(int N) {
  vector<int> vec(N);
  for (int i = 0; i < N; i++) {
    cin >> vec.at(i);
  }
  return vec;
int factor(int k){
    int s = 1;
    for (int i = 1; i <= k; i++){
        s *= i;
    }
    return s;
}

}
int main(){
  int n,k;
  cin>>n>>k;
  cout<<n*pow(n-1,k-1)<<endl;
}

Compiler output:
a.cc: In function 'std::vector<int> input(int)':
a.cc:21:18: error: a function-definition is not allowed here before '{' token
   21 | int factor(int k){
      |                  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int sum(vector<int> scores) {
  int a=0;
  for(int i=0;i<scores.size();i++){
    a+=scores.at(i);
  }
  return a;
}

void output(int sum_a, int sum_b, int sum_c) {
  cout<<sum_a*sum_b*sum_c<<endl;
}

vector<int> input(int N) {
  vector<int> vec(N);
  for (int i = 0; i < N; i++) {
    cin >> vec.at(i);
  }
  return vec;
}
int main(){
  int n,k;
  cin>>n>>k;
  cout<<n*(n-1)**(k-1)<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:17: error: invalid type argument of unary '*' (have 'int')
   25 |   cout<<n*(n-1)**(k-1)<<endl;
      |                 ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  int64_t n,k;
  cin >> n >> k;
  cout << k * power(k - 1,n - 1) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:15: error: 'power' was not declared in this scope
    6 |   cout << k * power(k - 1,n - 1) << endl;
      |               ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
    int N, K;
    cin >> N >> K;

    long long answer = 1;

    for (int i = 0; i < N; i++){
        answer = answer * (K - 1)
    }
    cout << answer << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:34: error: expected ';' before '}' token
   11 |         answer = answer * (K - 1)
      |                                  ^
      |                                  ;
   12 |     }
      |     ~
Language: C++

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

int main()
{
    long long a,b,c;
    cin>>a>>b;
    cout<<b*pow(b-1,a-1);<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:26: error: expected primary-expression before '<<' token
    8 |     cout<<b*pow(b-1,a-1);<<endl;
      |                          ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
template<typename T>inline void read(T &x){
	register short f=1;x=0;char c=getchar();
	while(!isdigit(c)){if(c=='-')f=-1;c=getchar();}
	while(isdigit(c))x=(x<<3)+(x<<1)+(c^48),c=getchar();
	x*=f;
}
template<typename T>inline void write(T x){
	if(x<0)putchar('-'),x=-x;
	if(x>9)write(x/10);
	putchar(x%10+'0');
}
template<typename T>inline void writeln(T x){
	write(x),putchar('\n');
}
long long a,b;
int main(){
	read(a),read(b);
	write(b*pow(b-1,a-1));
	return 0;
}

Compiler output:
a.cc: In function 'void read(T&)':
a.cc:4:24: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    4 |         register short f=1;x=0;char c=getchar();
      |                        ^
a.cc: In instantiation of 'void read(T&) [with T = long long int]':
a.cc:19:6:   required from here
   19 |         read(a),read(b);
      |         ~~~~^~~
a.cc:4:24: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    4 |         register short f=1;x=0;char c=getchar();
      |                        ^
a.cc: In instantiation of 'void write(T) [with T = double]':
a.cc:20:7:   required from here
   20 |         write(b*pow(b-1,a-1));
      |         ~~~~~^~~~~~~~~~~~~~~~
a.cc:12:18: error: invalid operands of types 'double' and 'int' to binary 'operator%'
   12 |         putchar(x%10+'0');
      |                 ~^~~
Language: C++

#include<iostream>
#include<algorithm>
#include<vector>
#include<string.h>
#include<cstdlib>
#include<map>
#include<fstream>
#include<string>
#include<sstream>
#include<iomanip>
#include<cmath>

using namespace std;

long long dp[3][100100] = {};
const long long INF = 1LL << 60;
#define MOD 1000000007

template<class T> inline bool chmin(T & a, T b) { if (a > b) { a = b; return true; } return false; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }

/**
* @fn
* 最大値を取ります.Vector<int>を渡すこと.
*/
long long int imax(vector<int> a) {
	int MAX = -10000000;
	for (int i = 0; i < a.size(); i++) {
		if (MAX < a.at(i)) MAX = a.at(i);
	}
	return MAX;
}

/**
* @fn
* 最小値を取ります.Vector<int>を渡すこと.
*/
long long int imin(vector<int> a) {
	int MIN = 1000000000;
	for (int i = 0; i < a.size(); i++) {
		if (MIN > a.at(i)) MIN = a.at(i);
	}
	return MIN;
}


long long int absmin(vector<int> a, long long int b) {
	int mini = 100000000;
	int d = 0;
	for (int i = 0; i < a.size(); i++) {
		if (mini > abs(a.at(i) - b)) {
			mini = abs(a.at(i) - b);
			d = i;
		}
	}
	return d;
}

int gcd(int a, int b)
{
	if (a < b) swap(a, b);
	if (b < 1) return -1;
	if (a % b == 0) return b;
	return gcd(b, a % b);
}

//ここまでライブラリ
//ここから本文

long long int tpimin(vector<int> a) {
	int MIN = 1000000000;
	int number = 0;
	for (int i = 0; i < a.size(); i++) {
		if (MIN > a.at(i)) MIN = a.at(i);
		number = i;
	}
	return number;
}


int main() {
	long long n, k;
	cin >> n >> k;
	cout << long long (k * pow(k - 1, n - 1)) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:84:17: error: expected primary-expression before 'long'
   84 |         cout << long long (k * pow(k - 1, n - 1)) << endl;
      |                 ^~~~
Language: C++

#include <iostream>
#include <cstdlib>
#include <string>
#include <vector>
#include <stack>
#include <map>
#include <set>
#include <algorithm>
#include <numeric>
#include <math.h>
#include <stdio.h>
#include <ctype.h>
#include <ios> 
#include <iomanip>
using namespace std;

#define N_MAX   (100000)
#define LL_MAX_NUM (1LL<<60)
#define INF 1e7

typedef long long ll;
typedef long long int lli;

int main() {
	int n, k; cin >> n >> k;
    ll ans = k;
    for (int i = 2; i <= n; i++)
    {
        ans *= (k -1)
    }
    cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:22: error: expected ';' before '}' token
   29 |         ans *= (k -1)
      |                      ^
      |                      ;
   30 |     }
      |     ~
Language: C++

using namespace std;
int main()
{
    int color;int n;
    cin>>n >>color;
    
    if (n==1)
    {
        cout<<color;
    }
    if (n==2)
    {
        cout<<color*(color-1);
    }
    if (n>2)
    {
        cout<<color*(color-1)*n;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:5: error: 'cin' was not declared in this scope
    5 |     cin>>n >>color;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | using namespace std;
a.cc:9:9: error: 'cout' was not declared in this scope
    9 |         cout<<color;
      |         ^~~~
a.cc:9:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:13:9: error: 'cout' was not declared in this scope
   13 |         cout<<color*(color-1);
      |         ^~~~
a.cc:13:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:17:9: error: 'cout' was not declared in this scope
   17 |         cout<<color*(color-1)*n;
      |         ^~~~
a.cc:17:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

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

int main(){
  int N,X;
  cin >> N >> X;
  long long out;
  
  out = X * pow(X-1,N-1)
  
  cout << out << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:25: error: expected ';' before 'cout'
    9 |   out = X * pow(X-1,N-1)
      |                         ^
      |                         ;
   10 | 
   11 |   cout << out << endl;
      |   ~~~~
Language: C++

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

int main() {
  int n,k;
  cin >>n>>k;
  long long ans = k;
  for(int i = 1;i<=n-1;i++){
    ans = ans *(k-1);
  }
  cout << ans <<endl;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <bits/stdc++.h>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin >>n>>k;
      |   ^~~
a.cc:11:3: error: 'cout' was not declared in this scope
   11 |   cout << ans <<endl;
      |   ^~~~
a.cc:11:17: error: 'endl' was not declared in this scope
   11 |   cout << ans <<endl;
      |                 ^~~~
Language: C

#include <stdi.h>

int main(void){
  	int a, b, c = 1;
	scanf("%d", &a);
  	scanf("%d", &b);
  	c = b;
  	a--;
  	while(a > 0){
      c *= b - 1;
      a--;
    }
  	printf("%d\n", c);
  
  	return 0;
}

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

#include<stdio.h>
#include<iostream>
#include<algorithm>
#include<functional>
using namespace std;
int main(void)
{
	int N, K;
	int ans = 1;
	cin >> N >> K;
	for (int i = 0; i < N; I++) {
		if (i == 0) {
			ans = ans * K;
		}
		else {
			ans *= K - 1;
		}
	}

	printf("%d", ans);
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:32: error: 'I' was not declared in this scope
   11 |         for (int i = 0; i < N; I++) {
      |                                ^
Language: C++

#include<bits/stdc++.h>
#define ll long long
using namespace std;
int main(){
   ll n,k,sum=0
   cin>>n>>k;
  sum+=k;
  for(int i=1;i<n;i++)
    sum*=k-1;
cout<<sum;
return 0;}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:4: error: expected ',' or ';' before 'cin'
    6 |    cin>>n>>k;
      |    ^~~
Language: C++

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

using ll = long long;
#define ld long double
#define ull unsigned long long int

#define rep(i, n) for (int i = 0; i < (int)(n); i++)  // (i, 10) i=0～i=9まで
#define repr(i, n) for (int i = n; i >= 0; i--)   // (i, 10) i=10～i=0まで
#define FOR(i, m, n) for (int i = m; i < n; i++)  // (i, 3, 10) i=3～i=9まで
#define SORT(v, n) sort(v, v + n);
#define VSORT(v) sort(v.begin(), v.end());
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define sz(x) ((int)(x).size())
#define pb push_back
#define ret return

typedef pair<int, int>    pii;
typedef vector<int>       vi;
typedef vector<vi>        vii;
typedef vector<long long> vl;

// 総数を1000000007で割った余り
const long long mod = 1e9 + 7;
#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))

int main() {
    // cin.tie(0);
    // ios::sync_with_stdio(false);
    // cout << fixed << setprecision(0);

    // 入力
    ll n, k;
    cin >> n >> k;

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

using ll = long long;
#define ld long double
#define ull unsigned long long int

#define rep(i, n) for (int i = 0; i < (int)(n); i++)  // (i, 10) i=0～i=9まで
#define repr(i, n) for (int i = n; i >= 0; i--)   // (i, 10) i=10～i=0まで
#define FOR(i, m, n) for (int i = m; i < n; i++)  // (i, 3, 10) i=3～i=9まで
#define SORT(v, n) sort(v, v + n);
#define VSORT(v) sort(v.begin(), v.end());
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define sz(x) ((int)(x).size())
#define pb push_back
#define ret return

typedef pair<int, int>    pii;
typedef vector<int>       vi;
typedef vector<vi>        vii;
typedef vector<long long> vl;

// 総数を1000000007で割った余り
const long long mod = 1e9 + 7;
#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))

int main() {
    // cin.tie(0);
    // ios::sync_with_stdio(false);
    // cout << fixed << setprecision(0);

    // 入力
    ll n, k;
    cin >> n >> k;

    // 処理
    // 出力
    cout << k * pow(k - 1, n - 1) << endl;

    return 0;
}

    cout << k * pow(k - 1, n - 1) << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:68:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   68 | int main() {
      |         ^~
a.cc:68:9: note: remove parentheses to default-initialize a variable
   68 | int main() {
      |         ^~
      |         --
a.cc:68:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:68:12: error: a function-definition is not allowed here before '{' token
   68 | int main() {
      |            ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
int int a,b;
cin>>a>>b;
long long f=1;
for(int i=1;i<=a;i++){
    if(i==1)f*=b;
    else f*=(b-1);
}
cout<<fixed<<setprecision(0)<<f;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:1: error: two or more data types in declaration of 'a'
    4 | int int a,b;
      | ^~~
a.cc:4:1: error: two or more data types in declaration of 'b'
a.cc:5:6: error: 'a' was not declared in this scope
    5 | cin>>a>>b;
      |      ^
a.cc:5:9: error: 'b' was not declared in this scope
    5 | cin>>a>>b;
      |         ^
Language: C++

#include <bits/stdc++.h>
#include<algorithm>
#include<math.h>
#include<string>
#include<iostream>
#include <vector>
#include <cstdlib>
using namespace std;
 
template <class T> using V = vector<T>;

template<class T> inline bool chmin(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template<class T> inline bool chmax(T& a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

const long long INF = 1LL << 60;
 
using ll = long long;
using db = double;
using st = string;
using ch = char;
using bl = bool;
using vll = V<ll>;
using vpll =V<pair<ll,ll>>;
using vst = V<st>;
using vdb = V<db>;
using vch = V<ch>;
using vbl = V<bl>;
 
 
#define FOR(i,a,b) for(ll i=(a);i<(b);i++)
#define rFOR(i,a,b) for(ll i=(a);i>(b);i--)
#define oFOR(i,a,b) for(ll i=(a);i<(b);i+=2)
#define bgn begin()
#define en end()
#define SORT(a) sort((a).bgn,(a).en)
#define REV(a) reverse((a).bgn,(a).en)
#define M(a,b) max(a,b)
#define rM(a,b) min(a,b)
#define fi first
#define se second
#define sz size()
#define gcd(a,b) __gcd(a,b)
#define co(a) cout<<a<<endl;
#define ci(a) cin>>a;
 
 
ll sum(ll n) {
  ll m=0;
  FOR(i,0,20){
    m+=n%10;
    n/=10;
    if(n==0){
      break;
    }
  }
  return m;
}
 
 
ll combi(ll n,ll m) {
  ll ans=1;
  rFOR(i,n,n-m){
    ans*=i;
  }
  FOR(i,1,m+1){
    ans/=i;
  }
  return ans;
}
 
 
ll lcm(ll a,ll b){
  ll n;
  n=a/gcd(a,b)*b;
  return n;
}
 
 
/****************************************\
| Thank you for viewing my code:)        |
| Written by RedSpica a.k.a. RanseMirage |
| Twitter:@asakaakasaka                  | 
\****************************************/
 
 
signed main() {
  ll n,m;
  	Ci(n>>m);
  ll ans=1;
  ans*=pow(m-1,n-1);
  ans*=m;
  co(m)
}

Compiler output:
a.cc: In function 'int main()':
a.cc:100:9: error: 'Ci' was not declared in this scope; did you mean 'ci'?
  100 |         Ci(n>>m);
      |         ^~
      |         ci
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int n, k;
  cin >> n >> k;
  int ans=k;
  if(n!!=1){
    for(int i=1;i<n;i++){
      ans*=k-1;
    }
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:7: error: expected ')' before '!' token
    7 |   if(n!!=1){
      |     ~ ^
      |       )
Language: C++

#include<iostream>
using namespace std;

int main(){
  int n, k; 
  cin >> n >> k;
  doubleint ans = 1;
  for(int i = 1; i <= n; i++){
    if(i = 1) ans *= k;
    else ans *= k-1;
  }
  
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'doubleint' was not declared in this scope; did you mean 'double'?
    7 |   doubleint ans = 1;
      |   ^~~~~~~~~
      |   double
a.cc:9:15: error: 'ans' was not declared in this scope; did you mean 'abs'?
    9 |     if(i = 1) ans *= k;
      |               ^~~
      |               abs
a.cc:10:10: error: 'ans' was not declared in this scope; did you mean 'abs'?
   10 |     else ans *= k-1;
      |          ^~~
      |          abs
a.cc:13:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   13 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
 int N,K;
  cin >> N >> K;
  cout << long pow(K-1,N-1)*K << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: expected primary-expression before 'long'
    7 |   cout << long pow(K-1,N-1)*K << endl;
      |           ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
 int N,K;
  cin >> N >> K;
  cout <<  long pow(K-1,N-1)*K << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: expected primary-expression before 'long'
    7 |   cout <<  long pow(K-1,N-1)*K << endl;
      |            ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
 int N,K;
  cin >> N >> K;
  cout << long long pow(K-1,N-1)*K << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: expected primary-expression before 'long'
    7 |   cout << long long pow(K-1,N-1)*K << endl;
      |           ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long a,b,c;
int main(){
    cin>>a>>b;
    c=b*pow(b-1,a-1)
    cout<<c<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:21: error: expected ';' before 'cout'
    6 |     c=b*pow(b-1,a-1)
      |                     ^
      |                     ;
    7 |     cout<<c<<endl;
      |     ~~~~
Language: C++

#include <iostream>
using namespace std;
 
int main() {
   int N,K,a,b,e;
    cin >>N>>K;
  for(int i=1;i<N;i++){
  if(N==1){
    a=N*K
  }else{
    e=K+(N-1)*rr(K)
  }
  }
    int rr(int b){
      int c=N-1;
      b=K-1;
      while(c>0){
        b=b*b;
        c-=1
      }
      return b;
    }

cout << e;
 

    }
 

Compiler output:
a.cc: In function 'int main()':
a.cc:9:10: error: expected ';' before '}' token
    9 |     a=N*K
      |          ^
      |          ;
   10 |   }else{
      |   ~       
a.cc:11:15: error: 'rr' was not declared in this scope
   11 |     e=K+(N-1)*rr(K)
      |               ^~
a.cc:14:18: error: a function-definition is not allowed here before '{' token
   14 |     int rr(int b){
      |                  ^
Language: C++

#include <bits/stdc++.h>
#define cinf(n,x,y) for(int i=0;i<(n);i++) cin >> x[i]>>y[i];
typedef long long int ll;
using namespace std;

int main(){
	int n,k; cin >>n >>K;
	int ans=1;
	ans*=k*pow(k-1,n-1);
	cout << ans <<endl;
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:7:28: error: 'K' was not declared in this scope
    7 |         int n,k; cin >>n >>K;
      |                            ^
Language: C++

#include <iostream>
#include <algorithm>
#include <string>
#include <math.h>
#include <stdio.h>
#include <set>
#include <vector>
using namespace std;

int main(){
    int n, k;
    cin>>n>>k;
    tori = 0;
    int i;
    int tmp = 0;
    for(i=2; i<=k; i++){
        tori += i*pow(i-1,n-1);
    }
    cout<<tori<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:5: error: 'tori' was not declared in this scope
   13 |     tori = 0;
      |     ^~~~
Language: C++

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

int main() 
{
	ios_base :: sync_with_stdio(0);  
	ll n, k;
	cin >> n >> k;
	ll res = 1;
	for(ll i = 1; i <= k; i++, m--) {
		res *= m;
	}
	cout << res << "\n";
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:36: error: 'm' was not declared in this scope
   12 |         for(ll i = 1; i <= k; i++, m--) {
      |                                    ^
Language: C++

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

int main() {
  int N, K;
  cin >> N >> K;
  int A;
  A = K
  for (int i = 0; i < N - 1; i++) {
      A *= (K - 1);    
  }  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:8: error: expected ';' before 'for'
    8 |   A = K
      |        ^
      |        ;
    9 |   for (int i = 0; i < N - 1; i++) {
      |   ~~~   
a.cc:9:19: error: 'i' was not declared in this scope
    9 |   for (int i = 0; i < N - 1; i++) {
      |                   ^
Language: C++

#include<iostream>
#include<cmath>
using namespace std;
int main(){
 int N,K; 
 cin>>N>>K;
 int ans=K*pow(K-1,N-1)
 cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:2: error: expected ',' or ';' before 'cout'
    8 |  cout<<ans<<endl;
      |  ^~~~
Language: C++

#include <iostream>
using namespace std;
int main(){
  int a,b,ans=1;
  cin>>a>>b;
  for(i=1;i<a;i++)
    ans*=(b-1);
  cout<<b*ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:7: error: 'i' was not declared in this scope
    6 |   for(i=1;i<a;i++)
      |       ^
Language: C++

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

int main(){
    int n, k, a;
    cin >> n >> k;
    n = k*pow(k-1, n-1)
    printf("%d", n);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:24: error: expected ';' before 'printf'
    7 |     n = k*pow(k-1, n-1)
      |                        ^
      |                        ;
    8 |     printf("%d", n);
      |     ~~~~~~
Language: C++

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

int main(){
    int n, k, a;
    cin >> n >> k;
    n = k*pow(k-1, n-1)
    printf("%d",) n;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:24: error: expected ';' before 'printf'
    7 |     n = k*pow(k-1, n-1)
      |                        ^
      |                        ;
    8 |     printf("%d",) n;
      |     ~~~~~~
Language: C++

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

int main(){
  int N,K;
  cin>>N>>K;

  long long ans=K;

  for(int i=2;i<N+1;i++){
    ans *= K-1;
  }

  cout << ans <<endl;

  retun 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:3: error: 'retun' was not declared in this scope
   16 |   retun 0;
      |   ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N, K; cin >> N >> K;
  long long ans = K;
  for (int i = 0; i < N-1; i++) ans *= K-1;
  cout << and << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:15: error: expected identifier before '<<' token
    8 |   cout << and << "\n";
      |               ^~
Language: C++

#include<iostream>
using namespace std;
int main(){
  ll ans;
  ll a,b;
  cin >> a >> b;
  if(a == 1) ans = b;
  else ans = b + (b-1)*(a-2);
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'll' was not declared in this scope
    4 |   ll ans;
      |   ^~
a.cc:5:5: error: expected ';' before 'a'
    5 |   ll a,b;
      |     ^~
      |     ;
a.cc:6:10: error: 'a' was not declared in this scope
    6 |   cin >> a >> b;
      |          ^
a.cc:6:15: error: 'b' was not declared in this scope
    6 |   cin >> a >> b;
      |               ^
a.cc:7:14: error: 'ans' was not declared in this scope; did you mean 'abs'?
    7 |   if(a == 1) ans = b;
      |              ^~~
      |              abs
a.cc:8:8: error: 'ans' was not declared in this scope; did you mean 'abs'?
    8 |   else ans = b + (b-1)*(a-2);
      |        ^~~
      |        abs
a.cc:9:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
    9 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++

#include<iostream>
using namespace std;

int main() {
  int N,K;
  cin >> N >> K;
  cout << K * ( K - 1 ) ^ ( N - 1 ) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:37: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
    7 |   cout << K * ( K - 1 ) ^ ( N - 1 ) << endl;
      |                           ~~~~~~~~~~^~~~~~~
Language: C++

#include <iostream>
#include <sstream>
#include <vector>
//#include <numeric>
//#include <algorithm>
#include <cmath>
#include <string>
//#include <map>
//#include <iomanip>
using namespace std;

//関数getinputdata宣言
vector<vector<string>> getinputdata();
vector<vector<int>> getinputdata2();
vector<vector<double>> getinputdata3();

void abc046_b(vector<vector<int>> v) {

    int n = v[0][0];
    int k = v[1][0];

    double val = pow(double(k - 1), double(n - 1));
    val*=k
    
    cout << val << endl;


}

int main() {

    //    vector<vector < string>> vec_arr_result;
    vector<vector<int>> vec_arr_result;
    vec_arr_result = getinputdata2();

    abc046_b(vec_arr_result);

    return 0;
}

//関数getinputdata実装

vector<vector<double>> getinputdata3() {

    string str;
    string ret;
    stringstream ss;
    vector<string> v1;
    vector<vector<double>> vec_arr;

    //標準入力から入力がある間ループ処理でvector配列にデータ格納
    while (getline(cin, str)) {

        v1.push_back(str);

    }

    //stringstreamを利用してvector配列v1をスペースで分解処理
    for (string s : v1) {

        vector<double> array_data;
        ss << s;

        while (!ss.eof()) {

            ss >> ret;

            array_data.push_back(atof(ret.c_str()));
        }

        //vector配列に追加
        vec_arr.push_back(array_data);

        //バッファクリア
        ss.str("");
        //ストリームクリア
        ss.clear(stringstream::goodbit);

    }

    return vec_arr;
}

//関数getinputdata実装

vector<vector<int>> getinputdata2() {

    string str;
    string ret;
    stringstream ss;
    vector<string> v1;
    vector<vector<int>> vec_arr;

    //標準入力から入力がある間ループ処理でvector配列にデータ格納
    while (getline(cin, str)) {

        v1.push_back(str);

    }

    //stringstreamを利用してvector配列v1をスペースで分解処理
    for (string s : v1) {

        vector<int> array_data;
        ss << s;

        while (!ss.eof()) {

            ss >> ret;

            array_data.push_back(atoi(ret.c_str()));
        }

        //vector配列に追加
        vec_arr.push_back(array_data);

        //バッファクリア
        ss.str("");
        //ストリームクリア
        ss.clear(stringstream::goodbit);

    }

    return vec_arr;


}

//関数getinputdata実装

vector<vector < string >> getinputdata() {

    string str;
    string ret;
    stringstream ss;
    vector<string> v1;
    vector<vector < string>> vec_arr;

    //標準入力から入力がある間ループ処理でvector配列にデータ格納
    while (getline(cin, str)) {

        v1.push_back(str);

    }

    //stringstreamを利用してvector配列v1をスペースで分解処理
    for (string s : v1) {

        vector<string> array_data;
        ss << s;

        while (!ss.eof()) {

            ss >> ret;

            array_data.push_back(ret);
        }

        //vector配列に追加
        vec_arr.push_back(array_data);

        //バッファクリア
        ss.str("");
        //ストリームクリア
        ss.clear(stringstream::goodbit);

    }

    return vec_arr;

}


Compiler output:
a.cc: In function 'void abc046_b(std::vector<std::vector<int> >)':
a.cc:23:11: error: expected ';' before 'cout'
   23 |     val*=k
      |           ^
      |           ;
   24 | 
   25 |     cout << val << endl;
      |     ~~~~
Language: C++

#include<iostream>
using namespace std;

int main(){
	int n,k,sum=1;
  	cin>>n>>k;
  	if(n==1)cout<<k<<endl;
  	else {
    	for(int i=1;i<n++i)sum*=(k-1);
      	cout<<k*sum<<endl;
    }
  	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:26: error: expected ';' before 'i'
    9 |         for(int i=1;i<n++i)sum*=(k-1);
      |                          ^
      |                          ;