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

#include <bits/stdc++.h>
#include <numeric>
#define REP(i, s, n) for (int i = s; i < n; ++i)
#define rep(i, n) REP(i, 0, n)
#define SORT(c) sort((c).begin(), (c).end())
#define SORT_INV(c) sort((c).begin(), (c).end(), greater<int>())
#define IINF INT_MAX
#define LLINF LLONG_MAX
#define DEBUG false
#define LL long long
#define Num 1000000007
// sort(a.begin(), a.end(), std::greater<int>());
using namespace std;

int find(int x, int y)
{
    int ans = INT_MAX;
    rep(i, x)
    {
        int a = i * y;
        int div = y / 2;
        int b = (x - i) * div;
        int c = (x - i) * (y - div);

        ans = min(ans, max(a, max(b, c) - min(a, min(b, c))));
    }
    return ans;
}
int main()
{
    if (int h, w;
        cin >> h >> w;
        cout << min(find(h, w), find(w, h));
        return 0;)
    {
        /* code */
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:32:22: error: expected ')' before ';' token
   32 |         cin >> h >> w;
      |                      ^
      |                      )
a.cc:31:8: note: to match this '('
   31 |     if (int h, w;
      |        ^
a.cc:33:26: error: 'h' was not declared in this scope
   33 |         cout << min(find(h, w), find(w, h));
      |                          ^
a.cc:33:29: error: 'w' was not declared in this scope
   33 |         cout << min(find(h, w), find(w, h));
      |                             ^
a.cc:34:18: error: expected primary-expression before ')' token
   34 |         return 0;)
      |                  ^
a.cc:37:6: error: expected '}' at end of input
   37 |     }
      |      ^
a.cc:30:1: note: to match this '{'
   30 | {
      | ^
Language: C++

#include <bits/stdc++.h>
#include <numeric>
#define REP(i, s, n) for (int i = s; i < n; ++i)
#define rep(i, n) REP(i, 0, n)
#define SORT(c) sort((c).begin(), (c).end())
#define SORT_INV(c) sort((c).begin(), (c).end(), greater<int>())
#define IINF INT_MAX
#define LLINF LLONG_MAX
#define DEBUG false
#define LL long long
#define Num 1000000007
// sort(a.begin(), a.end(), std::greater<int>());
using namespace std;

int find(int x,int y){
    int ans=INT_MAX;
    rep(i,x){
        int a=i*y;
        int div=y/2;
        int b=(x-i)*div;
        int c=(x-i)*(y-div);
        ans=min(ans,min(a,min(b,c)));
    }
    return min;
}
int main()
{
    int h,w;
    cin>>h>>w;
    cout<<min(find(h,w),find(w,h));
    return 0;
}

Compiler output:
a.cc: In function 'int find(int, int)':
a.cc:24:12: error: cannot resolve overloaded function 'min' based on conversion to type 'int'
   24 |     return min;
      |            ^~~
Language: C++

#! /usr/bin/env python3

def main():
    H, W = map(int, input().split())
    # if (H > 2 and H % 3 == 0) or (W > 2 and W % 3 == 0):
    #     print(0)
    # else:
    ans = H * W
    left = 0
    up = 1
    while 1:
        a = W * up
        b = (H - up) * (left)
        c = (H - up) * (W - left)
        ans = min(ans, max(a, b, c) - min(a, b, c))
        if a == min(a, b, c):
            up += 1
        elif b == min(a, b, c):
            left += 1
        else:
            break
    if H > 2:
        i = 1
        j = 2
        while 1:
            a = W * i
            b = W * j - a
            c = H * W - b - a
            ans = min(ans, max(a, b, c) - min(a, b, c))
            if a == min(a, b, c):
                i += 1
                j += 1
            elif b == min(a, b, c):
                j += 1
            else:
                break
    H, W = W, H
    left = 0
    up = 1
    while 1:
        a = W * up
        b = (H - up) * (left)
        c = (H - up) * (W - left)
        ans = min(ans, max(a, b, c) - min(a, b, c))
        if a == min(a, b, c):
            up += 1
        elif b == min(a, b, c):
            left += 1
        else:
            break
    if H > 2:
        i = 1
        j = 2
        while 1:
            a = W * i
            b = W * j - a
            c = H * W - b - a
            ans = min(ans, max(a, b, c) - min(a, b, c))
            if a == min(a, b, c):
                i += 1
                j += 1
            elif b == min(a, b, c):
                j += 1
            else:
                break
        
    print(ans)
main()



Compiler output:
a.cc:1:2: error: invalid preprocessing directive #!
    1 | #! /usr/bin/env python3
      |  ^
a.cc:5:58: error:  ':' without preceding '?'
    5 |     # if (H > 2 and H % 3 == 0) or (W > 2 and W % 3 == 0):
      |                                                          ^
a.cc:7:11: warning: extra tokens at end of #else directive [-Wendif-labels]
    7 |     # else:
      |           ^
a.cc:5: error: unterminated #else
    5 |     # if (H > 2 and H % 3 == 0) or (W > 2 and W % 3 == 0):
a.cc:3:1: error: 'def' does not name a type
    3 | def main():
      | ^~~
Language: C++

#include <bits/stdc++.h>
#define int long long
using namespace std;
const int INF = 1e9 + 7, MOD = 1e9 + 7;
const long long LINF = 1e18;
const int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
signed main() {
	int h, w;
	cin >> h >> w;
	int ans = INF;
	if (h % 3 == 0 || w % 3 == 0) {
		cout << 0 << endl;
		return 0;
	}
	for (int i = 1; i < h; i++) {
		int H = h - i, W = w;
		int S1 = (h - H) * W, S2 = H * (W / 2);
		int S3 = H * W - S2;
		int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
		ans = min(ans, Max - Min);
		S2 = (H / 2) * W;
		S3 = H * W - S2;
		int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
		ans = min(ans, Max - Min);
	}
	for (int i = 1; i < w; i++) {
		int H = h, W = w - i;
		int S1 = H * (w - W), S2 = (H / 2) * W;
		int S3 = H * W - S2;
		int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
		ans = min(ans, Max - Min);
		S2 = H * (W / 2);
		S3 = H * W - S2;
		int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
		ans = min(ans, Max - Min);
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:21: error: redeclaration of 'long long int Max'
   23 |                 int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
      |                     ^~~
a.cc:19:21: note: 'long long int Max' previously declared here
   19 |                 int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
      |                     ^~~
a.cc:23:46: error: redeclaration of 'long long int Min'
   23 |                 int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
      |                                              ^~~
a.cc:19:46: note: 'long long int Min' previously declared here
   19 |                 int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
      |                                              ^~~
a.cc:34:21: error: redeclaration of 'long long int Max'
   34 |                 int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
      |                     ^~~
a.cc:30:21: note: 'long long int Max' previously declared here
   30 |                 int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
      |                     ^~~
a.cc:34:46: error: redeclaration of 'long long int Min'
   34 |                 int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
      |                                              ^~~
a.cc:30:46: note: 'long long int Min' previously declared here
   30 |                 int Max = max({S1, S2, S3}), Min = min({S1, S2, S3});
      |                                              ^~~
Language: C++

#include <bits/stdc++.h>
//---------------------------
using namespace std;
//---------------------------
#define REP(i,n) for(int i = 0; i < (n); i++)
#define P(x) cout << (x) << "\n"

#define MOD 1000000007 // 1e9+7
#define PI acos(-1.0)
#define ll long long int // 10^18
#define INF 1000000001 // 1e9+1

int dx[4]={1,-1,0,0};
int dy[4]={0,0,1,-1};
//---------------------------

int main(){
  std::ios::sync_with_stdio(false);
  std::cin.tie(0);

  // ifstream in("input.txt");
  // cin.rdbuf(in.rdbuf());

  ll h,w;cin>>h>>w;
  ll ans=0;
  if(h%3!=0 && w%3!=0){
    if(w<h){
    for(ll i=1;i<w;i++){
      ll s0=h*(w-i);
      ll s1=(h/2)*i;
      ll s2=((h+1)/2)*i;
      ll mx=max(s0, max(s1, s2));
      ll mn=min(s0, min(s1, s2));
      ans=min(ans, mx-mn);
    }
  }
  P(ans);
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:39:2: error: expected '}' at end of input
   39 | }
      |  ^
a.cc:17:11: note: to match this '{'
   17 | int main(){
      |           ^
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <functional>
#include <queue>
#include <set>
#define rep(i,n) for(int (i)=0;(i)<(n);(i)++)
#define rep1(i,n) for(int i=1;i<=(int)(n);i++)

using namespace std;
typedef long long int lli;
const int MAX=1e5;

lli f(lli a,lli b,lli c){
	if(a>b){
      lli z=a;
      a=b;
      b=z;
    }
	if(c<a)return b-c;
	else if(c<b)return b-a;
	else return c-a;
}

int main(){
  cout<<x<<endl;
	lli H,W;
	cin>>H>>W;
	if(H>W){
		lli Z=H;
		H=W;
		W=Z;
	}
	lli ans=H;
	if(H%3==0||W%3==0)ans=0;
	if(W%3==1){
		lli n=W/3;
		if(H%2==0)ans=H/2;
		else ans=min(ans,f(H*n,(H/2)*(2*n+1),(H/2+1)*(2*n+1)));
	}
	if(W%3==2){
		lli n=W/3;
		if(H%2==0)ans=H/2;
		else ans=min(ans,f(H*(n+1),(H/2)*(2*n+1),(H/2+1)*(2*n+1)));
	}
	if(H%3==1){
		lli n=H/3;
		if(W%2==0)ans=min(ans,W/2);
		else ans=min(ans,f(W*n,(W/2)*(2*n+1),(W/2+1)*(2*n+1)));
	}
	if(H%3==2){
		lli n=H/3;
		if(W%2==0)ans=min(ans,W/2);
		else ans=min(ans,f(W*(n+1),(W/2)*(2*n+1),(W/2+1)*(2*n+1)));
	}
	cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:9: error: 'x' was not declared in this scope
   27 |   cout<<x<<endl;
      |         ^
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <functional>
#include <queue>
#include <set>
#define rep(i,n) for(int (i)=0;(i)<(n);(i)++)
#define rep1(i,n) for(int i=1;i<=(int)(n);i++)

using namespace std;
typedef long long int lli;
const int MAX=1e5;

lli f(lli a,lli b,lli c){
	if(a>b){
      lli z=a;
      a=b;
      b=z;
    }
	if(c<a)return b-c;
	else if(c<b)return b-a;
	else return c-a;
}

int main(){
  cout<<x<<endl;
	lli H,W;
	cin>>H>>W;
	if(H>W){
		int Z=H;
		H=W;
		W=Z;
	}
	lli ans=H;
	if(H%3==0||W%3==0)ans=0;
	if(W%3==1){
		lli n=W/3;
		if(H%2==0)ans=H/2;
		else ans=min(ans,f(H*n,(H/2)*(2*n+1),(H/2+1)*(2*n+1)));
	}
	if(W%3==2){
		lli n=W/3;
		if(H%2==0)ans=H/2;
		else ans=min(ans,f(H*(n+1),(H/2)*(2*n+1),(H/2+1)*(2*n+1)));
	}
	if(H%3==1){
		lli n=H/3;
		if(W%2==0)ans=min(ans,W/2);
		else ans=min(ans,f(W*n,(W/2)*(2*n+1),(W/2+1)*(2*n+1)));
	}
	if(H%3==2){
		lli n=H/3;
		if(W%2==0)ans=min(ans,W/2);
		else ans=min(ans,f(W*(n+1),(W/2)*(2*n+1),(W/2+1)*(2*n+1)));
	}
	cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:9: error: 'x' was not declared in this scope
   27 |   cout<<x<<endl;
      |         ^
Language: C++

#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
#define INF (1<<30)
#define INFLL (1ll<<60)
typedef pair<int, int> P;
typedef pair<ll, P> E;
#define cost first
#define from second.first
#define to second.second
#define MOD (1000000007ll)
#define l_ength size

void mul_mod(ll& a, ll b){
	a *= b;
	a %= MOD;
}

int main(void){
	ll h,hd,w,wd,i,a,b,c;
	cin >> h >> w;
	if(!(h%3) && !(w%3)){
		cout << 0 << endl;
		return 0;
	}
	ans = min(h,w);
	for(i=1ll; i<h; ++i){
		a = w * i;
		hd = h - i;
		b = hd * (w/2);
		c = hd * (w - (w/2));
		ans = min(ans,max(a,c)-min(a,b));
	}
	for(i=1ll; i<w; ++i){
		a = h * i;
		wd = w - i;
		b = wd * (h/2);
		c = wd * (h - (h/2));
		ans = min(ans,max(a,c)-min(a,b));
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   26 |         ans = min(h,w);
      |         ^~~
      |         abs
Language: C++

#include <iostream>
#include <climits>
#include <string>
#include <stdlib.h>
#include <algorithm>

using namespace std;
 
int ascSort(const void* v1, const void* v2) {
    const int _v1 = *((const int*)v1);
    const int _v2 = *((const int*)v2);
 
    if ( _v1 < _v2 ) {
        return 1;
    } else if ( _v1 > _v2 ) {
        return -1;
    } else {
        return 0;
    }
}
int main() {
	int h,w;
	cin >> h>> w;
	if(h%3==0 || w%3==0){
		cout << 0 <<endl;
	}else{
		int ans=0;
		
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:2: error: expected '}' at end of input
   30 | }
      |  ^
a.cc:21:12: note: to match this '{'
   21 | int main() {
      |            ^
Language: Java

import java.util.Scanner;

/**
 * https://abc062.contest.atcoder.jp/tasks/arc074_a
 */
public class Main {

	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		long H = sc.nextLong();
		long W = sc.nextLong();
		sc.close();
		
		long ans = Math.min((H%3==0 ? 0:1)*W,(W%3==0 ? 0:1)*H);
		ans = Math.min(ans, getAreaDiff(W,H));
		ans = Math.min(ans, getAreaDiff(H,W));
		
		System.out.println(ans);
		
	}
	
	static long getAreaDiff(long w, long h){
		long diff = h*w;
		for(int i=1; i<h; i++){
			long h1 = i;
			long h2 = h-i;
			long a1 = h1*w;
			long a2 = h2*(w/2);
			long a3 = h2*(w-w/2);
			long area = Math.max(Math.max(a1,a2),a3) - Math.min(Math.min(a1,a2),a3);
			diff = Math.min(diff, area);
		}
		return diff;
	}


Compiler output:
Main.java:35: error: reached end of file while parsing
	}
	 ^
1 error
Language: C++

#include <iostream>
using namespace std;
int main(void) {
  int h, w;
  cin >> h >> w;
  if (h % 3 == 0 || w % 3 == 0) {
    cout << 0 << endl;
    return 0;
  }
  //yoko*3
  int mi = w;
  //yoko*2=>tate*2
  int area[3];
  int h1 = h / 3;
  int w1 = w / 2;
  area[0] = w * h1;
  area[1] = w1 * (h - h1);
  area[2] = (w - w1) * (h - h1);
  sort(area, area + 3);
  if (area[2] - area[0] < mi) {
    mi = area[2] - area[0];
  }
  h1 = h / 3 + 1;
  area[0] = w * h1;
  area[1] = w1 * (h - h1);
  area[2] = (w - w1) * (h - h1);
  sort(area, area + 3);
  if (area[2] - area[0] < mi) {
    mi = area[2] - area[0];
  }
  //tate*3
  if (mi > h) {
    mi = h;
  }
  //tate*2=>yoko*2
  h1 = h / 2;
  w1 = w / 3;
  area[0] = w1 * h;
  area[1] = (w - w1) * h1;
  area[2] = (w - w1) * (h - h1);
  sort(area, area + 3);
  if (area[2] - area[0] < mi) {
    mi = area[2] - area[0];
  }
  w1 = w / 3 + 1;
  area[0] = w1 * h;
  area[1] = (w - w1) * h1;
  area[2] = (w - w1) * (h - h1);
  sort(area, area + 3);
  if (area[2] - area[0] < mi) {
    mi = area[2] - area[0];
  }
  cout << mi << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   19 |   sort(area, area + 3);
      |   ^~~~
      |   short
Language: C++

#include<bits/stdc++.h>

using namespace std;
using ll = long long;

int main(void){
    ll H, W;
    cin >> H >> W;
    ll ans = H*W;
    for(ll i=1;i<=H;i++){
        ll a = i*W;
        ll b = (H-i)/2*W;
        ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b))); 
    }
    for(ll i=1;i<=W;i++){
        ll a = i*H;
        ll b = (W-i)/2*H;
        ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b))); 
    }
    for(ll i=1;i<=H;i++){
        ll a = W*i;1
        ll b = W/2*(H-i);
        ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b))); 
    }
    for(ll i=1;i<=W;i++){
        ll a = i*H;
        ll b = H/2*(W-i);
        ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b))); 
    }
    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:21: error: expected ';' before 'll'
   21 |         ll a = W*i;1
      |                     ^
      |                     ;
   22 |         ll b = W/2*(H-i);
      |         ~~           
a.cc:23:35: error: 'b' was not declared in this scope
   23 |         ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b)));
      |                                   ^
Language: C++

#include<bits/stdc++.h>

using namespace std;
using ll = long long;

ll main(void){
    ll H, W;
    cin >> H >> W;
    ll ans = H*W;
    for(ll i=1;i<=H;i++){
        ll a = i*W;
        ll b = (H-i)/2*W;
        ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b))); 
    }
    for(ll i=1;i<=W;i++){
        ll a = i*H;
        ll b = (W-i)/2*H;
        ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b))); 
    }
    for(ll i=1;i<=H;i++){
        ll a = W*i;1
        ll b = W/2*(H-i);
        ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b))); 
    }
    for(ll i=1;i<=W;i++){
        ll a = i*H;
        ll b = H/2*(W-i);
        ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b))); 
    }
    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc:6:1: error: '::main' must return 'int'
    6 | ll main(void){
      | ^~
a.cc: In function 'int main()':
a.cc:21:21: error: expected ';' before 'll'
   21 |         ll a = W*i;1
      |                     ^
      |                     ;
   22 |         ll b = W/2*(H-i);
      |         ~~           
a.cc:23:35: error: 'b' was not declared in this scope
   23 |         ans = min(ans, max(a, max(b, H*W-a-b))-min(a, min(b, H*W-a-b)));
      |                                   ^
Language: C++

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

int main(){
 int H,W,max,min,ans;
 cin >> H >> W;
 
 if(N*W%3==0)ans=0;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'N' was not declared in this scope
    8 |  if(N*W%3==0)ans=0;
      |     ^
Language: C

#include <stdio.h>

long judge(long, long);

int main(void){
long W, H;

scanf("%ld %ld", &H, &W);
if(W%3==0 || H%3==0){
	printf("0");
	return 0;
}
printf("%d", judge(H,W)>judge(W,H)?judge(W,H):judge(H,W));

return 0;
}

long judge(long H, long W){
int used, i;
long S, target, Max, Mid, Min, tmp;
S = H*W;

target = S/3;

for(i=1; Max < target; i++){
Max += H;
}
if((Max-target)>(H/2) &&(Max-H)>0){
	Max -=H;
	i--;
}

used = i-1;
target = (S-Max)/2;

for(i=1; Mid < target; i++){
Mid += (W-used);
}

if((Mid-target)>((W-used)/2)&&(Mid-(W-used))>0){
Mid -= (W-used);
}

Min = S -(Max+Mid);

if(Mid >Max){
tmp = Mid;
Mid = Max;
Max= tmp;
}

if(Min > Mid){
tmp = Min;
Min = Mid;
Mid = tmp;
}

if(Mid >Max){
tmp = Mid;
Mid = Max;
Max= tmp;
}

printf("%ld %ld %ld\n", Max, Mid, Min);

return Max-Min

}


Compiler output:
main.c: In function 'judge':
main.c:66:15: error: expected ';' before '}' token
   66 | return Max-Min
      |               ^
      |               ;
   67 | 
   68 | }
      | ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long int
signed main(void)
{
    int H, W;
    cin >> H >> W;
    if( W > H ){
        W += H;
        H = W - H;
        W -= H;
    }
    int a, b, c;
    int H_mod_3 = H % 3;
    int W_mod_3 = W % 3;
    int max = 0;
    int min = 10000000000000;
    int ans = 10000000000000;
    if( H_mod_3 == 0 || W_mod_3 == 0){
        cout << 0;
        return 0;
    }
    for( int i = W/2-3; i <= W/2+3; i++){
        for( int j = H/3-3; j <= H/3+3; j++){
            if( H-j < 1 || W-i < 1 || j < 1 || i < 1)continue;
            max = 0;
            min = 10000000000000;
            if( min > i * W) min = j * W;
            if( max < i * W) max = j * W;
            if( min > (H-j) * i) min = (H-j) * i;
            if( max < (H-j) * i) max = (H-j) * i;
            if( min > (H-j) * (W-i)) min = (H-j) * (W-i);
            if( max < (H-j) * (W-i)) max = (H-j) * (W-i);
            if( ans > max-min) ans = max-min;
            //printf("a:%lld*%lld=%lld, b:%lld*%lld=%lld, c:%lld*%lld=%lld\n", j, W, j * W, H-j, i, (H-j) * i, H-j, W-i,(H-j) * (W-i));
            //printf("max:%lld,min:%lld, %lld\n", max, min, ans);
        }
    }

    cout << min(ans,W);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:40:16: error: 'min' cannot be used as a function
   40 |     cout << min(ans,W);
      |             ~~~^~~~~~~
Language: C++

#include <iostream>
using namespace std;

int max(int a, int b, int c) {

	if (a > b&&a > c)return a;
	else if (b > a&&b > c)return b;
	else return c;

}
int min(int a, int b, int c) {

	if (a < b&&a < c)return a;
	else if (b < a&&b < c)return b;
	else return c;

}
int mmd(int a, int b, int c) {

	return max(a, b, c) - min(a, b, c);

}
int main() {

	int H, W, a, b, c, tmp = INT_MAX;
	cin >> H >> W;

	if (H % 3 == 0 || W % 3 == 0)cout << 0 << endl;
	else {

		for (int i = 1; i < W; i++) {

			a = i*H;
			if (H % 2 == 0) {

				b = (W - i)*(H / 2);
				c = b;

			}
			else {

				b = (W - i)*((H - 1) / 2);
				c = (W - i)*((H + 1) / 2);

			}
			if (tmp > mmd(a, b, c))tmp = mmd(a, b, c);

		}
		for (int i = 1; i < H; i++) {

			a = i*W;
			if (W % 2 == 0) {

				b = (H - i)*(W / 2);
				c = b;

			}
			else {

				b = (H - i)*((W - 1) / 2);
				c = (H - i)*((W + 1) / 2);

			}
			if (tmp > mmd(a, b, c))tmp = mmd(a, b, c);

		}

	}

	cout << tmp << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:34: error: 'INT_MAX' was not declared in this scope
   25 |         int H, W, a, b, c, tmp = INT_MAX;
      |                                  ^~~~~~~
a.cc:2:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    1 | #include <iostream>
  +++ |+#include <climits>
    2 | using namespace std;
Language: C++

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

int main(){
	int h,w;
	cin>>h>>w;
	for(int i=0; i<h; i++){
		s[0]
	}
	
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:17: error: 's' was not declared in this scope
    8 |                 s[0]
      |                 ^
Language: C

#define L long long
L n(L a,L b){return a<b?a:b;}
L x(L a,L b){return a>b?a:b;}
L l(L a){return a>0?a:-a;}
#define E(p,q) x(l(b*i-p),l(b*i-q))
L s(int a,int b){
    L i=0,p=1<<30;
    for(;i++<a;p=n(p,n(E((a-i)/2*b,b*(a-i-(a-i)/2)),E(b/2*(a-i),(a-i)*(b-b/2)))));
}
 
int main(void){
    L h,w;
    scanf("%d%d",&h,&w);
	printf("%d",n(s(h,w),s(w,h));
}

Compiler output:
main.c: In function 'main':
main.c:13:5: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
   13 |     scanf("%d%d",&h,&w);
      |     ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #define L long long
main.c:13:5: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
   13 |     scanf("%d%d",&h,&w);
      |     ^~~~~
main.c:13:5: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:14:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   14 |         printf("%d",n(s(h,w),s(w,h));
      |         ^~~~~~
main.c:14:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:14:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:14:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:14:37: error: expected ')' before ';' token
   14 |         printf("%d",n(s(h,w),s(w,h));
      |               ~                     ^
      |                                     )
main.c:14:38: error: expected ';' before '}' token
   14 |         printf("%d",n(s(h,w),s(w,h));
      |                                      ^
      |                                      ;
   15 | }
      | ~
Language: C

#define L long long
L n(L a,L b){return a<b?a:b;}
L x(L a,L b){return a>b?a:b;}
L l(L a){return a>0?a:-a}
#define E(p,q) x(l(b*i-p),l(b*i-q))
L s(int a,int b){
    L i=0,p=1<<30;
    for(;i++<a;p=n(p,n(E((a-i)/2*b,b*(a-i-(a-i)/2)),E(b/2*(a-i),(a-i)*(b-b/2)))));
}
 
int main(void){
    L h,w;
    scanf("%d%d",&h,&w);
	printf("%d",n(s(h,w),s(w,h));
}

Compiler output:
main.c: In function 'l':
main.c:4:25: error: expected ';' before '}' token
    4 | L l(L a){return a>0?a:-a}
      |                         ^
      |                         ;
main.c: In function 'main':
main.c:13:5: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
   13 |     scanf("%d%d",&h,&w);
      |     ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #define L long long
main.c:13:5: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
   13 |     scanf("%d%d",&h,&w);
      |     ^~~~~
main.c:13:5: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:14:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   14 |         printf("%d",n(s(h,w),s(w,h));
      |         ^~~~~~
main.c:14:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:14:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:14:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:14:37: error: expected ')' before ';' token
   14 |         printf("%d",n(s(h,w),s(w,h));
      |               ~                     ^
      |                                     )
main.c:14:38: error: expected ';' before '}' token
   14 |         printf("%d",n(s(h,w),s(w,h));
      |                                      ^
      |                                      ;
   15 | }
      | ~
Language: C

#define L long long
L n(L a,L b){return a<b?a:b;}
L x(L a,L b){return a>b?a:b;}
L l(L a){return a>0?a:-a}
#define E(p,q) x(l(b*i-p),l(b*i-q));
L s(int a,int b){
    L i=0,p=1<<30;
    for(;i++<a;p=n(p,n(E((a-i)/2*b,b*(a-i-(a-i)/2)),E(b/2*(a-i),(a-i)*(b-b/2)))));
}
 
int main(void){
    L h,w;
    scanf("%d%d",&h,&w);
	printf("%d",n(s(h,w),s(w,h));
}

Compiler output:
main.c: In function 'l':
main.c:4:25: error: expected ';' before '}' token
    4 | L l(L a){return a>0?a:-a}
      |                         ^
      |                         ;
main.c: In function 's':
main.c:5:36: error: expected ')' before ';' token
    5 | #define E(p,q) x(l(b*i-p),l(b*i-q));
      |                                    ^
main.c:8:24: note: in expansion of macro 'E'
    8 |     for(;i++<a;p=n(p,n(E((a-i)/2*b,b*(a-i-(a-i)/2)),E(b/2*(a-i),(a-i)*(b-b/2)))));
      |                        ^
main.c:8:23: note: to match this '('
    8 |     for(;i++<a;p=n(p,n(E((a-i)/2*b,b*(a-i-(a-i)/2)),E(b/2*(a-i),(a-i)*(b-b/2)))));
      |                       ^
main.c:8:22: error: too few arguments to function 'n'
    8 |     for(;i++<a;p=n(p,n(E((a-i)/2*b,b*(a-i-(a-i)/2)),E(b/2*(a-i),(a-i)*(b-b/2)))));
      |                      ^
main.c:2:3: note: declared here
    2 | L n(L a,L b){return a<b?a:b;}
      |   ^
main.c: In function 'main':
main.c:13:5: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
   13 |     scanf("%d%d",&h,&w);
      |     ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #define L long long
main.c:13:5: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
   13 |     scanf("%d%d",&h,&w);
      |     ^~~~~
main.c:13:5: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:14:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   14 |         printf("%d",n(s(h,w),s(w,h));
      |         ^~~~~~
main.c:14:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:14:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:14:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:14:37: error: expected ')' before ';' token
   14 |         printf("%d",n(s(h,w),s(w,h));
      |               ~                     ^
      |                                     )
main.c:14:38: error: expected ';' before '}' token
   14 |         printf("%d",n(s(h,w),s(w,h));
      |                                      ^
      |                                      ;
   15 | }
      | ~
Language: C++

#include <iostream>
#include <vector>
using namespace std;
#define int long long

auto main() -> signed {
    int H, W;
    cin >> H >> W;
    if(H%3==0||W%3==0) {
        cout << 0 << endl;
        return 0;
    }

    int ans = 1e+9;
    for(int h=1; h<H; ++h) {
        int a = h*W;
        int bw = W/2;
        int b = bw*(H-h);
        int c = (W-bw)*(H-h);
        vector<int> v;
        v.push_back(a);
        v.push_back(b);
        v.push_back(c);
        sort(v.begin(), v.end());
        ans = min(ans, v[2]-v[0]);

        if(H-h>=2) {
            int bh = (H-h)/2;
            b = bh*W;
            c = (H-h-bh)*W;
            v.clear();
            v.push_back(a);
            v.push_back(b);
            v.push_back(c);
            sort(v.begin(), v.end());
            ans = min(ans, v[2]-v[0]);
        }
    }

    for(int w=1; w<W; ++w) {
        int a = w*H;
        int bh = H/2;
        int b = bh*(W-w);
        int c = (W-w)*(H-bh);
        vector<int> v;
        v.push_back(a);
        v.push_back(b);
        v.push_back(c);
        sort(v.begin(), v.end());
        ans = min(ans, v[2]-v[0]);

        if(W-w>=2) {
            int bw = (W-w)/2;
            b = bw*H;
            c = (W-w-bw)*H;
            v.clear();
            v.push_back(a);
            v.push_back(b);
            v.push_back(c);
            sort(v.begin(), v.end());
            ans = min(ans, v[2]-v[0]);
        }
    }
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   24 |         sort(v.begin(), v.end());
      |         ^~~~
      |         short
a.cc:49:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   49 |         sort(v.begin(), v.end());
      |         ^~~~
      |         short
Language: C++

#include <iostream>
using namespace std;

#define int long long

int main()
{
  int h, w, i, y;
  int x1, x2, x3;
  int _min, _max;
  long long answer = 1e11;

  cin >> h >> w;
  if(h % 3 == 0 || w % 3 == 0)
  {
    cout << "0";
  }
  else
  {
    //1
    for(i=0; i<=h; i++)
    {
      x1 = i * w;
      x2 = (h - i) * (w / 2);
      x3 = h * w - x1 - x2;
      _min = min(x1, min(x2, x3));
      _max = max(x1, max(x2, x3));
      answer = min(answer, _max - _min);
    }
    //2
    y = h;
    h = w;
    w = y;
    for(i=0; i<=h; i++)
    {
      x1 = i * w;
      x2 = (h - i) * (w / 2);
      x3 = h * w - x1 - x2;
      _min = min(x1, min(x2, x3));
      _max = max(x1, max(x2, x3));
      answer = min(answer, _max - _min);
    }
    cout << answer << endl;
  }
  return 0;
}


Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C

#include <stdio.h>

int main()
{
  int h, w, h1, h2;
  int answer = 0;
  int x1, x3;
  int m, n;
  scanf("%d %d", &m, &n);
  if(m >= n)
  {
    h = m;
    w = n;
  }
  else
  {
    h = n;
    w = m;
  }
  if(h % 3 == 0 || w % 3 == 0)
  {
    answer = 0;
  }
  else
  {
    //1
    h1 = h / 3;
    if(h % 3 == 2) h1++;
    x1 = h1 * w;

    //3
    h2 = h - h1;
    if(w % 2 == 0)
    {
      x3 = h2 * w / 2;
    }
    else if(h2 % 2 == 0)
    {
      x3 = w * h2 / 2;
    }
    else
    {
      if(w =< h2)
      {
        x3 = w * h2 / 2;
      }
      else
      {
        x3 = h2 * w / 2;
      }
    }

    //
    if(x1 > x3)
    {
      answer = x1 -x3;
    }
    else if(x3 > x1)
    {
      answer = x3 - x1;
    }
    else
    {
      answer = 0;
    }
    if(answer < 0)
    {
      answer = 0;
    }
  }
  printf("%d\n", answer);
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:43:13: error: expected expression before '<' token
   43 |       if(w =< h2)
      |             ^
Language: C

//
      x2 = (h - i) / 2 * w;
      x3 = h * w - x1 - x2;
      if(x1 <= x2)
      {
        min = x1;
        max = x3;
      }
      else if(x2 < x1 && x1 < x3)
      {
        min = x2;
        max = x3;
      }
      else
      {
        min = x2;
        max = x1;
      }
      if(answer1 > max - min)
      {
        answer1 = max - min;
      }

Compiler output:
main.c:2:7: warning: data definition has no type or storage class
    2 |       x2 = (h - i) / 2 * w;
      |       ^~
main.c:2:7: error: type defaults to 'int' in declaration of 'x2' [-Wimplicit-int]
main.c:2:13: error: 'h' undeclared here (not in a function)
    2 |       x2 = (h - i) / 2 * w;
      |             ^
main.c:2:17: error: 'i' undeclared here (not in a function)
    2 |       x2 = (h - i) / 2 * w;
      |                 ^
main.c:2:26: error: 'w' undeclared here (not in a function)
    2 |       x2 = (h - i) / 2 * w;
      |                          ^
main.c:3:7: warning: data definition has no type or storage class
    3 |       x3 = h * w - x1 - x2;
      |       ^~
main.c:3:7: error: type defaults to 'int' in declaration of 'x3' [-Wimplicit-int]
main.c:3:20: error: 'x1' undeclared here (not in a function); did you mean 'x3'?
    3 |       x3 = h * w - x1 - x2;
      |                    ^~
      |                    x3
main.c:4:7: error: expected identifier or '(' before 'if'
    4 |       if(x1 <= x2)
      |       ^~
main.c:9:7: error: expected identifier or '(' before 'else'
    9 |       else if(x2 < x1 && x1 < x3)
      |       ^~~~
main.c:14:7: error: expected identifier or '(' before 'else'
   14 |       else
      |       ^~~~
main.c:19:7: error: expected identifier or '(' before 'if'
   19 |       if(answer1 > max - min)
      |       ^~
Language: C++


import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) throws IOException {
		Scanner scan = new Scanner(System.in);
		long h = scan.nextLong();
		long w = scan.nextLong();
		long answer;

		if(h%3==0 || w%3==0){
			answer = 0;
		}else{
			ArrayList<Long> list = new ArrayList<>();
			long x = h * w / 3;
			long i = x / h;
			long temp, max, min;

			if(h % 2 == 0){
				temp = Math.abs(h*i - h/2*(w-i));
				list.add(temp);
				System.out.println(temp);
				i++;
				temp = Math.abs(h*i - h/2*(w-i));
				list.add(temp);
				System.out.println(temp);
			}else{
				max = Math.max(Math.abs(h*i - h/2*(w-i)), Math.abs(h*i - (h/2+1)*(w-i)));
				max = Math.max(max, w-i);
				min = Math.min(Math.abs(h*i - h/2*(w-i)), Math.abs(h*i - (h/2+1)*(w-i)));
				min = Math.min(min, w-i);
				temp = max - min;
				list.add(temp);
				i++;
				max = Math.max(Math.abs(h*i - h/2*(w-i)), Math.abs(h*i - (h/2+1)*(w-i)));
				max = Math.max(max, w-i);
				min = Math.min(Math.abs(h*i - h/2*(w-i)), Math.abs(h*i - (h/2+1)*(w-i)));
				min = Math.min(min, w-i);
				temp = max - min;
			}

			i = x / w;

			if(w % 2 == 0){
				temp = Math.abs(w*i - w/2*(h-i));
				list.add(temp);
				System.out.println(temp);
				i++;
				temp = Math.abs(w*i - w/2*(h-i));
				list.add(temp);
				System.out.println(temp);
			}else{
				max = Math.max(Math.abs(w*i - w/2*(h-i)), Math.abs(w*i - (w/2+1)*(h-i)));
				max = Math.max(max, h-i);
				min = Math.min(Math.abs(w*i - w/2*(h-i)), Math.abs(w*i - (w/2+1)*(h-i)));
				min = Math.min(min, h-i);
				temp = max - min;
				list.add(temp);
				System.out.println(temp);
				i++;
				max = Math.max(Math.abs(w*i - w/2*(h-i)), Math.abs(w*i - (w/2+1)*(h-i)));
				max = Math.max(max, h-i);
				min = Math.min(Math.abs(w*i - w/2*(h-i)), Math.abs(w*i - (w/2+1)*(h-i)));
				min = Math.min(min, h-i);
				temp = max - min;
				System.out.println(temp);
			}

			Collections.sort(list);
			answer = list.get(0);
		}

		System.out.println(answer);
	}


}


Compiler output:
a.cc:2:1: error: 'import' does not name a type
    2 | import java.io.IOException;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: 'import' does not name a type
    3 | import java.util.ArrayList;
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: 'import' does not name a type
    4 | import java.util.Collections;
      | ^~~~~~
a.cc:4:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:5:1: error: 'import' does not name a type
    5 | import java.util.Scanner;
      | ^~~~~~
a.cc:5:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:7:1: error: expected unqualified-id before 'public'
    7 | public class Main {
      | ^~~~~~
Language: C++

#include <bits/stdc++.h>  
 
using namespace std;
 
#define FOR(i, j, k) for(int i = j; i < k; ++i)
#define rep(i, j) FOR(i, 0, j)
#define FORr(i, j, k) for(int i = j; i >= k; --i)
#define repr(i, j) FOR(i, j, 0)
#define INF (1 << 30)
#define MOD 1e9 + 7
 
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> P;
typedef pair<P, int> Pi;
 
int main() {
	ll H, W;
	scanf("%lld %lld", &H, &W);
	ll ans = INT_MAX;
	for(ll i = 1; i < H; ++i) {
		ll tmp = i * W;
		ll tmp2 = (H - i) * (W / 2);
		ll tmp3 = (H - i) * (W - W / 2);
		ll maxi = max(tmp, tmp2);
		maxi = max(maxi, tmp3);
		ll mini = min(tmp, tmp2);
		mini = min(mini, tmp3);
		ans = min(ans, maxi - mini);
		tmp2 =((H - i) / 2) * W;
		tmp3 =((H - i) - (H - i) / 2) * W;
		maxi = max(tmp, tmp2);
		maxi = max(maxi, tmp3);
		mini = min(tmp, tmp2);
		mini = min(mini, tmp3);
		ans = min(ans, maxi - mini);
	}
	(ll i = 1; i < W; ++i) {
		ll tmp = i * H;
		ll tmp2 = (W - i) * (H / 2);
		ll tmp3 = (W - i) * (H - H / 2);
		ll maxi = max(tmp, tmp2);
		maxi = max(maxi, tmp3);
		ll mini = min(tmp, tmp2);
		mini = min(mini, tmp3);
		ans = min(ans, maxi - mini);
		tmp2 = ((W - i) / 2) * W;
		tmp3 = ((W - i) - (W - i) / 2) * W;
		maxi = max(tmp, tmp2);
		maxi = max(maxi, tmp3);
		mini = min(tmp, tmp2);
		mini = min(mini, tmp3);
		ans = min(ans, maxi - mini);
	}
	printf("%lld\n", ans);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:38:13: error: expected primary-expression before 'i'
   38 |         (ll i = 1; i < W; ++i) {
      |             ^
a.cc:38:12: error: expected ')' before 'i'
   38 |         (ll i = 1; i < W; ++i) {
      |         ~  ^~
      |            )
a.cc:38:20: error: 'i' was not declared in this scope
   38 |         (ll i = 1; i < W; ++i) {
      |                    ^
Language: C++

#include <bits/stdc++.h>  

using namespace std;

#define FOR(i, j, k) for(int i = j; i < k; ++i)
#define rep(i, j) FOR(i, 0, j)
#define FORr(i, j, k) for(int i = j; i >= k; --i)
#define repr(i, j) FOR(i, j, 0)
#define INF (1 << 30)
#define MOD 1e9 + 7

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> P;
typedef pair<P, int> Pi;

int main() {
	ll H, W;
	scanf("%lld %lld", &H, &W);
	ll ans = INF;
	for(ll i = 1; i < H; ++i) {
		ll tmp = i * W;
		ll tmp2 = (H - i) * (W / 2);
		ll tmp3 = (H - i) * (W - W / 2);
		ll maxi = max(tmp, tmp2);
		maxi = max(maxi, tmp3);
		ll mini = min(tmp, tmp2);
		mini = min(mini, tmp3);
		ans = min(ans, maxi - mini);
		tmp2 =((H - i) / 2) * W;
		tmp3 =((H - i) - (H - i) / 2) * W;
		maxi = max(tmp, tmp2);
		maxi = max(maxi, tmp3);
		mini = min(tmp, tmp2);
		mini = min(mini, tmp3);
		ans = min(ans, maxi - mini);
	}
	(ll i = 1; i < W; ++i) {
		ll tmp = i * H;
		ll tmp2 = (W - i) * (H / 2);
		ll tmp3 = (W - i) * (H - H / 2);
		ll maxi = max(tmp, tmp2);
		maxi = max(maxi, tmp3);
		ll mini = min(tmp, tmp2);
		mini = min(mini, tmp3);
		ans = min(ans, maxi - mini);
		tmp2 = ((W - i) / 2) * W;
		tmp3 = ((W - i) - (W - i) / 2) * W;
		maxi = max(tmp, tmp2);
		maxi = max(maxi, tmp3);
		mini = min(tmp, tmp2);
		mini = min(mini, tmp3);
		ans = min(ans, maxi - mini);
	}
	printf("%lld\n", ans);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:38:13: error: expected primary-expression before 'i'
   38 |         (ll i = 1; i < W; ++i) {
      |             ^
a.cc:38:12: error: expected ')' before 'i'
   38 |         (ll i = 1; i < W; ++i) {
      |         ~  ^~
      |            )
a.cc:38:20: error: 'i' was not declared in this scope
   38 |         (ll i = 1; i < W; ++i) {
      |                    ^
Language: C++

#include <cstdio>
#include <iostream>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <cstring>
#include <queue>
#include <stack>
#include <functional>
#include <set>
#include <map>
#include <deque>
#include <cmath>
#define WMAX 100005
#define HMAX 100005
#define INF (long long)1e18

//コメントアウトするとdebug()を実行しない
#define DEBUG

using namespace std;
template<typename A, size_t N, typename T>
void Fill(A (&array)[N], const T &val){
    std::fill( (T*)array, (T*)(array+N), val );
}

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

struct edge{
  int to,cost;
};

int A,B,C,D,E,N,W,H,ans;
char a[HMAX][WMAX];
string S;
static const int dx[8] = {0,1,1,1,0,-1,-1,-1},
					dy[8] = {1,1,0,-1,-1,-1,0,1};

void solve(){
	for (int i = 0; i < H; ++i)
	{
		A = W * (i+1);
		int ma = A,mi = A, maximum = A,minimum = A;
		B = W * ((H-i)/2);
		C = W * (H-i - (H-i)/2);
		ma = max(ma,B);
		ma = max(ma,C);
		mi = min(mi,B);
		mi = min(mi,C);
		D = (W/2) * (H-i);
		E = (W-W/2) * (H-i);
		maximum = max(maximum,B);
		maximum = max(maximum,C);
		minimum = min(minimum,B);
		minimum = min(minimum,C);
		ans = min(ma-mi,maximum-minimum);
	}
	for (int i = 0; i < W; ++i)
	{
		A = H * (i+1);
		int ma = A,mi = A, maximum = A,minimum = A;
		B = H * ((W-i)/2);
		C = H * (W-i - (W-i)/2);
		ma = max(ma,B);
		ma = max(ma,C);
		mi = min(mi,B);
		mi = min(mi,C);
		D = (H/2) * (W-i);
		E = (H-H/2) * (W-i);
		maximum = max(maximum,B);
		maximum = max(maximum,C);
		minimum = min(minimum,B);
		minimum = min(minimum,C);
		ans = min(ans,ma-mi);
		ans = min(ans,maximum-minimum);
	}
}

void debug(){

}

void answer(){
	cout << ans << "\n";
}

int main(){
	cin >> H >> W;
	
	solve();
	#ifdef DEBUG
	debug();
	#endif
	answer();

	return 0;
}

Compiler output:
/tmp/ccDeATlg.o: in function `__static_initialization_and_destruction_0()':
a.cc:(.text+0x4be): relocation truncated to fit: R_X86_64_PC32 against symbol `S[abi:cxx11]' defined in .bss section in /tmp/ccDeATlg.o
a.cc:(.text+0x4d7): relocation truncated to fit: R_X86_64_PC32 against symbol `S[abi:cxx11]' defined in .bss section in /tmp/ccDeATlg.o
collect2: error: ld returned 1 exit status
Language: C++

#include <cstdio>
#include <iostream>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <cstring>
#include <queue>
#include <stack>
#include <functional>
#include <set>
#include <map>
#include <deque>
#include <cmath>
#define WMAX 100005
#define HMAX 100005
#define INF (long long)1e18

//コメントアウトするとdebug()を実行しない
#define DEBUG

using namespace std;
template<typename A, size_t N, typename T>
void Fill(A (&array)[N], const T &val){
    std::fill( (T*)array, (T*)(array+N), val );
}

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

struct edge{
  int to,cost;
};

int A,B,C,D,E,N,W,H,ans,dp[HMAX][WMAX];
char a[HMAX][WMAX];
string S;
static const int dx[8] = {0,1,1,1,0,-1,-1,-1},
					dy[8] = {1,1,0,-1,-1,-1,0,1};

void solve(){
	for (int i = 0; i < H; ++i)
	{
		A = W * (i+1);
		int ma = A,mi = A, maximum = A,minimum = A;
		B = W * ((H-i)/2);
		C = W * (H-i - (H-i)/2);
		ma = max(ma,B);
		ma = max(ma,C);
		mi = min(mi,B);
		mi = min(mi,C);
		D = (W/2) * (H-i);
		E = (W-W/2) * (H-i);
		maximum = max(maximum,B);
		maximum = max(maximum,C);
		minimum = min(minimum,B);
		minimum = min(minimum,C);
		ans = min(ma-mi,maximum-minimum);
	}
	for (int i = 0; i < W; ++i)
	{
		A = H * (i+1);
		int ma = A,mi = A, maximum = A,minimum = A;
		B = H * ((W-i)/2);
		C = H * (W-i - (W-i)/2);
		ma = max(ma,B);
		ma = max(ma,C);
		mi = min(mi,B);
		mi = min(mi,C);
		D = (H/2) * (W-i);
		E = (H-H/2) * (W-i);
		maximum = max(maximum,B);
		maximum = max(maximum,C);
		minimum = min(minimum,B);
		minimum = min(minimum,C);
		ans = min(ans,ma-mi);
		ans = min(ans,maximum-minimum);
	}
}

void debug(){

}

void answer(){
	cout << ans << "\n";
}

int main(){
	cin >> H >> W;
	
	solve();
	#ifdef DEBUG
	debug();
	#endif
	answer();

	return 0;
}

Compiler output:
/tmp/cc6qXqGF.o: in function `__static_initialization_and_destruction_0()':
a.cc:(.text+0x4be): relocation truncated to fit: R_X86_64_PC32 against symbol `S[abi:cxx11]' defined in .bss section in /tmp/cc6qXqGF.o
a.cc:(.text+0x4d7): relocation truncated to fit: R_X86_64_PC32 against symbol `S[abi:cxx11]' defined in .bss section in /tmp/cc6qXqGF.o
collect2: error: ld returned 1 exit status
Language: C++

#include <cstdio>
#include <iostream>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <cstring>
#include <queue>
#include <stack>
#include <functional>
#include <set>
#include <map>
#include <deque>
#include <cmath>
#define WMAX 100005
#define HMAX 100005
#define INF (long long)1e18

//コメントアウトするとdebug()を実行しない
#define DEBUG

using namespace std;
template<typename A, size_t N, typename T>
void Fill(A (&array)[N], const T &val){
    std::fill( (T*)array, (T*)(array+N), val );
}

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

struct edge{
  int to,cost;
};

int A,B,C,D,E,N,W,H,ans,dp[HMAX][WMAX];
char a[HMAX][WMAX];
string S;
static const int dx[8] = {0,1,1,1,0,-1,-1,-1},
					dy[8] = {1,1,0,-1,-1,-1,0,1};

void solve(){
	for (int i = 0; i < H; ++i)
	{
		A = W * (i+1);
		int ma = A,mi = A, maximum = A,minimum = A;
		B = W * ((H-i)/2);
		C = W * (H-i - (H-i)/2);
		ma = max(ma,B);
		ma = max(ma,C);
		mi = min(mi,B);
		mi = min(mi,C);
		D = (W/2) * (H-i);
		E = (W-W/2) * (H-i);
		maximum = max(maximum,B);
		maximum = max(maximum,C);
		minimum = min(minimum,B);
		minimum = min(minimum,C);
		ans = min(ma-mi,maximum-minimum);
	}
	for (int i = 0; i < W; ++i)
	{
		A = H * (i+1);
		int ma = A,mi = A, maximum = A,minimum = A;
		B = H * ((W-i)/2);
		C = H * (W-i - (W-i)/2);
		ma = max(ma,B);
		ma = max(ma,C);
		mi = min(mi,B);
		mi = min(mi,C);
		D = (H/2) * (W-i);
		E = (H-H/2) * (W-i);
		maximum = max(maximum,B);
		maximum = max(maximum,C);
		minimum = min(minimum,B);
		minimum = min(minimum,C);
		ans = min(ans,ma-mi);
		ans = min(ans,maximum-minimum);
	}
}

void debug(){

}

void answer(){
	cout << ans << "\n";
}

int main(){
	cin >> H >> W;
	
	solve();
	#ifdef DEBUG
	debug();
	#endif
	answer();

	return 0;
}

Compiler output:
/tmp/cc3Q5ff7.o: in function `__static_initialization_and_destruction_0()':
a.cc:(.text+0x4be): relocation truncated to fit: R_X86_64_PC32 against symbol `S[abi:cxx11]' defined in .bss section in /tmp/cc3Q5ff7.o
a.cc:(.text+0x4d7): relocation truncated to fit: R_X86_64_PC32 against symbol `S[abi:cxx11]' defined in .bss section in /tmp/cc3Q5ff7.o
collect2: error: ld returned 1 exit status
Language: C++

#include <cstdio>
#include <iostream>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <cstring>
#include <queue>
#include <stack>
#include <functional>
#include <set>
#include <map>
#include <deque>
#include <cmath>
#define WMAX 100005
#define HMAX 100005
#define INF (long long)1e18

//コメントアウトするとdebug()を実行しない
#define DEBUG

using namespace std;
template<typename A, size_t N, typename T>
void Fill(A (&array)[N], const T &val){
    std::fill( (T*)array, (T*)(array+N), val );
}

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

struct edge{
  int to,cost;
};

int A,B,C,D,E,N,W,H,ans,dp[HMAX][WMAX];
char a[HMAX][WMAX];
string S;
static const int dx[8] = {0,1,1,1,0,-1,-1,-1},
					dy[8] = {1,1,0,-1,-1,-1,0,1};

void solve(){
	for (int i = 0; i < H; ++i)
	{
		A = W * (i+1);
		int ma = A,mi = A, maximum = A,minimum = A;
		B = W * ((H-i)/2);
		C = W * (H-i - (H-i)/2);
		ma = max(ma,B);
		ma = max(ma,C);
		mi = min(mi,B);
		mi = min(mi,C);
		D = (W/2) * (H-i);
		E = (W-W/2) * (H-i);
		maximum = max(maximum,B);
		maximum = max(maximum,C);
		minimum = min(minimum,B);
		minimum = min(minimum,C);
		ans = min(ma-mi,maximum-minimum);
	}
	for (int i = 0; i < W; ++i)
	{
		A = H * (i+1);
		int ma = A,mi = A, maximum = A,minimum = A;
		B = H * ((W-i)/2);
		C = H * (W-i - (W-i)/2);
		ma = max(ma,B);
		ma = max(ma,C);
		mi = min(mi,B);
		mi = min(mi,C);
		D = (H/2) * (W-i);
		E = (H-H/2) * (W-i);
		maximum = max(maximum,B);
		maximum = max(maximum,C);
		minimum = min(minimum,B);
		minimum = min(minimum,C);
		ans = min(ans,ma-mi);
		ans = min(ans,maximum-minimum);
	}
}

void debug(){

}

void answer(){
	cout << ans << "\n";
}

int main(){
	cin >> H >> W;
	
	solve();
	#ifdef DEBUG
	debug();
	#endif
	answer();

	return 0;
}

Compiler output:
/tmp/ccGtG2ve.o: in function `__static_initialization_and_destruction_0()':
a.cc:(.text+0x4be): relocation truncated to fit: R_X86_64_PC32 against symbol `S[abi:cxx11]' defined in .bss section in /tmp/ccGtG2ve.o
a.cc:(.text+0x4d7): relocation truncated to fit: R_X86_64_PC32 against symbol `S[abi:cxx11]' defined in .bss section in /tmp/ccGtG2ve.o
collect2: error: ld returned 1 exit status