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

# include <cstdio>
# include <cstring>
# include <iostream>
# include <algorithm>
using namespace std; 
# define N 3005
int dp[N],a[N],b[N],c[N],x[N],y[N],out[N],n,m;
int search(int x)
{
	int left=1,right=m,mid;
	while (left<=right)
	{
		mid=(left+right)>>1;
		if (c[mid]<x)
			left=mid+1;
		else if (c[mid]>x)
			right=mid-1;
		else return mid;
	}
	return -1;
}
int main (void)
{
	int t,tot,k;
	scanf("%d",&t);
	
	for (int cas=1;cas<=t;cas++)
	{
		scanf("%d",&n);
		memset(dp,0,sizeof(dp));
		tot=0;
		for (int i=1;i<=n;i++)
		{
			scanf("%d%d",&a[i],&b[i]);
			c[++tot]=a[i];
			c[++tot]=b[i];
		}
		sort(c+1,c+1+n+n);
		m=1;
		for(int i=2;i<2*n+1;i++)
		{
			if(c[i]!=c[i-1])
			{
				c[++m]=c[i];
			}
		}
		for (int i=1;i<=n;i++)
		{
			x[i]=search(a[i]);
			y[i]=search(b[i]);
		}
		//~ for (int i=1;i<=m;i++)
			//~ printf("%d\n",c[i]);
		//~ for (int i=1;i<=n;i++)
			//~ printf("%d %d\n",x[i],y[i]);
		for (int i=1;i<=m;i++)
		{
			tot=0;
			k=2*n+10;
			memset(out,0,sizeof(int)*i);
			for (int j=1;j<=n;j++)
				if (x[j]<=i && y[j]>=i)
				{
					++tot;
					++out[x[j]];
					if (x[j]<k)
						k=x[j];
				}
			dp[i]=dp[i-1];
			if (tot>2)
			{
				dp[i]=max(dp[i],dp[k-1]+tot);
				for (int j=k;j<i;j++)
				{
					tot-=out[j];
					dp[i]=max(dp[i],dp[j]+tot);
					if (tot<=2)
						break;
				}
			}
			
		}
		for (int i=1;i<=m;i++)
			printf("%d  %d  %d\n",i,c[i],dp[i]);
		printf("Case #%d: %d\n",cas,dp[m]);
	}
	return 0 ;
}
1  1  0
2  2  0
3  3  3
4  4  4
5  10  4
6  11  4
7  12  4
8  13  6
9  14  7
10  15  7
11  19  7
12  20  7
13  21  7
14  22  10
15  23  10
16  24  10
Case #1: 10

Compiler output:
main.c:1:11: fatal error: cstdio: No such file or directory
    1 | # include <cstdio>
      |           ^~~~~~~~
compilation terminated.
Language: C

#include <iostream>
#include <cstdio>
#include <cmath>
#include <cstring>
#include <cstdlib>
#define maxn 1000000
#define M 100000
using namespace std;
typedef long long typec;
struct matrix{
	typec v[120][120];
};
const int CH=4;
int trie[10000][CH];
int que[5000000];
int fail[10000];
int sw[128];
int word[10000];
int loc,maxx;
void insert(char *s,int len)
{
	int r=0;
	for(int i=0;i<len;i++)
	{
		int index=sw[s[i]];		
		if(!trie[r][index])
		{
			trie[r][index]=++loc;
			word[loc]=0;
			for(int j=0;j<CH;j++)
			{
				trie[loc][j]=0;
			}
		}
		r=trie[r][index];
	}
	word[r]=1;
	return ;
}
void AC()
{
	
	int front=0,rear=0;
	for(int i=0;i<CH;i++)
	{
		if(trie[0][i])
		{
			fail[trie[0][i]]=0;
			que[rear++]=trie[0][i];
		}
	}
	while(front!=rear)
	{
		int p=que[front++];
		word[p]=word[p]||word[fail[p]];
		for(int i=0;i<CH;i++)
		{
			if(trie[p][i])
			{
				int v=trie[p][i];
				que[rear++]=v;
				fail[v]=trie[fail[p]][i];				
			}
			else
			{
				trie[p][i]=trie[fail[p]][i];
			}
		}
	}
}
matrix multiply(matrix a,matrix b)
{
	matrix c;
	memset(c.v,0,sizeof(c.v));
	for(int i=0;i<maxx;i++)
	{
		for(int j=0;j<maxx;j++)
		{
			for(int k=0;k<maxx;k++)
			{
				c.v[i][j]+=a.v[i][k]*b.v[k][j];
				c.v[i][j]%=M;
			}
		}
	}
	return c;
}
matrix gao(matrix a,typec n)
{
	matrix ans;	
	for(int i=0;i<maxx;i++)
	{
		for(int j=0;j<maxx;j++)
		{
			if(i==j) ans.v[i][j]=1;
			else ans.v[i][j]=0;
		}
	}	
	
	while(n!=0)
	{
		if(n&1) ans=multiply(ans,a);
		a=multiply(a,a);
		n=n/2;
	}
	return ans;
}
char ss[20];
matrix xx,ans;
int main(void)
{
	typec n,m;
	loc=0;
	sw['A']=0;sw['T']=1;sw['G']=2;sw['C']=3;	
	for(int i=0;i<CH;i++)
	{
		trie[0][i]=0;
	}	
	cin>>n>>m;
	while(n--)
	{
		scanf("%s",ss);
		int len=strlen(ss);
		insert(ss,len);
	}
	AC();
	memset(ans.v,0,sizeof(ans.v));
	for(int i=0;i<=loc;i++)
	{
		for(int j=0;j<CH;j++)
		{
			if(word[i]==0&&word[trie[i][j]]==0)
			{
				ans.v[i][trie[i][j]]++;
			}
		}
	}

	maxx=loc+1;
	xx=gao(ans,m);
	typec sum=0;
	for(int i=0;i<=loc;i++)
	{
		sum+=xx.v[0][i];
		sum=sum%M;
	}
	cout<<sum%M<<endl;
	//system("pause");
	return 0;
}

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

# include <cmath>
# include <algorithm>
# include <iostream>
# include <cstring>
# define bignum 200000000
# define eps 1e-6
# define N 655
using namespace std;
int p;
struct Point
{
	int x,y;
}pt[N],pln[N];

int dlcmp(int x)
{
	return x<0?-1:x>0;
}
int cross(Point a,Point b,Point s)
{
	int x1=a.x-s.x,y1=a.y-s.y;
	int x2=b.x-s.x,y2=b.y-s.y;
	return x1*y2-x2*y1;
}
double dis(Point a,Point b)
{
	double dx=a.x-b.x;
	double dy=a.y-b.y;
	return sqrt( dx*dx + dy*dy );
}
int cmp(Point a,Point b)
{
	if (dlcmp(cross(a,b,pt[0]))==1 || 
		(dlcmp(cross(a,b,pt[0]))==0 && dis(pt[0],a)<dis(pt[0],b)) )
		return 1;
	else return 0;
}
int graham_scan(int n)
{
	int top,t,i;
	if (n<=1)
		return n;
	for (t=0,i=1;i<n;i++)
		if (dlcmp(pt[i].y-pt[t].y)==-1 || 
		(dlcmp(pt[i].y-pt[t].y)==0 && dlcmp(pt[i].x-pt[t].x)==-1))
				t=i;
	swap(pt[0],pt[t]);

	sort (pt+1,pt+n,cmp);
	for (i=0;i<2;i++)
		pln[i]=pt[i];
	top=2;
	for (i=2;i<n;i++)
	{
		while (top>1 && dlcmp(cross(pln[top-1],pt[i],pln[top-2]))<=0)
			top--;
		pln[top++]=pt[i];
	}
	return top;
}

Compiler output:
main.c:1:11: fatal error: cmath: No such file or directory
    1 | # include <cmath>
      |           ^~~~~~~
compilation terminated.
Language: C

5 300
0 0
9 0
9 5
8 9
0 9

117

5 300
0 0
9 0
9 5
8 9
0 9

1175 300
0 0
9 0
9 5
8 9
0 9

1175 300
0 0
9 0
9 5
8 9
0 9

1175 300
0 0
9 0
9 5
8 9
0 9

1175 300
0 0
9 0
9 5
8 9
0 9

1175 300
0 0
9 0
9 5
8 9
0 9

1175 300
0 0
9 0
9 5
8 9
0 9

117

Compiler output:
main.c:1:1: error: expected identifier or '(' before numeric constant
    1 | 5 300
      | ^
Language: C

#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
using namespace std;

struct Rectangle
{
	double x1,x2,y1,y2;
	int legal;
};

struct Point
{
	double x,y;
};

Rectangle screen,inverse;
Point s,t;


int main()
{
	double w,h,a,b,r,dx,dy,ans;
	int sm,tm;
	int flag;
	
	while (scanf("%lf%lf%lf%lf",&w,&h,&a,&b)!=EOF)
	{
		scanf("%lf%lf%d%lf%lf%d",&s.x,&s.y,&sm,&t.x,&t.y,&tm);
		screen.x1=0;
		screen.x2=w;
		screen.y1=0;
		screen.y2=h;
		r=sqrt(a*a+b*b)/2;
		
		flag=1;
		
		
		if (sm==1)
		{
			if (s.x-a/2<screen.x1||s.x+a/2>screen.x2||
			    s.y-b/2<screen.y1||s.y+b/2>screen.y2)
			    flag=0;
		}
		else
		{
			if (s.x-b/2<screen.x1||s.x+b/2>screen.x2||
			    s.y-a/2<screen.y1||s.y+a/2>screen.y2)
			    flag=0;	
		}
		
		if (tm==1)
		{
			if (t.x-a/2<screen.x1||t.x+a/2>screen.x2||
			    t.y-b/2<screen.y1||t.y+b/2>screen.y2)
			    flag=0;
		}
		else
		{
			if (t.x-b/2<screen.x1||t.x+b/2>screen.x2||
			    t.y-a/2<screen.y1||t.y+a/2>screen.y2)
			    flag=0;
		}
		
		if (flag==0)
		{
			printf("-1\n");
			continue;
		}
		
		inverse.x1=screen.x1+r;
		inverse.x2=screen.x2-r;
		inverse.y1=screen.y1+r;
		inverse.y2=screen.y2-r;
		if (inverse.x1>inverse.x2||inverse.y1>inverse.y2)
			inverse.legal=0;
		else
		    inverse.legal=1;
		
		if (sm==tm)
		{
			ans=fabs(s.x-t.x)+fabs(s.y-t.y);
			printf("%.3f\n",ans);
		}
		else
		{
			if (inverse.legal==0)
			{
				printf("-1\n");
				continue;
			}
			

			if (max(s.x,t.x)<inverse.x1)
				dx=fabs(inverse.x1-max(s.x,t.x));
			else if (min(s.x,t.x)>inverse.x2)
				dx=fabs(inverse.x2-min(s.x,t.x));
			else
				dx=0;
				
			if (max(s.y,t.y)<inverse.y1)
				dy=fabs(inverse.y1-max(s.y,t.y));
			else if (min(s.y,t.y)>inverse.y2)
				dy=fabs(inverse.y2-min(s.y,t.y));
			else
				dy=0;
				
			ans=fabs(s.x-t.x)+fabs(s.y-t.y)+dx*2+dy*2;
			printf("%.3f\n",ans);
		}
		
	}
	
	return 0;
}		

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

#include<stdio.h>

int main(){
	int a,b;
	for(a=1,a<=9;a++){
		for(b=1;b<9;b++){
			printf("%dx%d=%d\n",a,b,a*b);
		}
	}
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:25: error: expected ';' before ')' token
    5 |         for(a=1,a<=9;a++){
      |                         ^
      |                         ;
Language: C

main(){a,b;for(a=1;a<=9;a++)for(b=1;b<=9;b++)printf("%dx%d=%d\n",a,b,a*b);return 0;}

Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(){a,b;for(a=1;a<=9;a++)for(b=1;b<=9;b++)printf("%dx%d=%d\n",a,b,a*b);return 0;}
      | ^~~~
main.c: In function 'main':
main.c:1:8: error: 'a' undeclared (first use in this function)
    1 | main(){a,b;for(a=1;a<=9;a++)for(b=1;b<=9;b++)printf("%dx%d=%d\n",a,b,a*b);return 0;}
      |        ^
main.c:1:8: note: each undeclared identifier is reported only once for each function it appears in
main.c:1:10: error: 'b' undeclared (first use in this function)
    1 | main(){a,b;for(a=1;a<=9;a++)for(b=1;b<=9;b++)printf("%dx%d=%d\n",a,b,a*b);return 0;}
      |          ^
main.c:1:46: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | main(){a,b;for(a=1;a<=9;a++)for(b=1;b<=9;b++)printf("%dx%d=%d\n",a,b,a*b);return 0;}
      |                                              ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | main(){a,b;for(a=1;a<=9;a++)for(b=1;b<=9;b++)printf("%dx%d=%d\n",a,b,a*b);return 0;}
main.c:1:46: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | main(){a,b;for(a=1;a<=9;a++)for(b=1;b<=9;b++)printf("%dx%d=%d\n",a,b,a*b);return 0;}
      |                                              ^~~~~~
main.c:1:46: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

struct line {
    point a,b;
};

//ティツョツ。テァツョツ幼ross product (P1-P0)x(P2-P0)  テ・ツ渉嘉ァツァツッ
double xmult(point p1,point p2,point p0){
	return (p1.x-p0.x)*(p2.y-p0.y)-(p2.x-p0.x)*(p1.y-p0.y);
}

//ティツョツ。テァツョツ妖ot product (P1-P0).(P2-P0)  テァツつケテァツァツッ
double dmult(point p1,point p2,point p0){
	return (p1.x-p0.x)*(p2.x-p0.x)+(p1.y-p0.y)*(p2.y-p0.y);
}

Compiler output:
main.c:2:5: error: unknown type name 'point'; did you mean 'int'?
    2 |     point a,b;
      |     ^~~~~
      |     int
main.c:6:14: error: unknown type name 'point'; did you mean 'int'?
    6 | double xmult(point p1,point p2,point p0){
      |              ^~~~~
      |              int
main.c:6:23: error: unknown type name 'point'; did you mean 'int'?
    6 | double xmult(point p1,point p2,point p0){
      |                       ^~~~~
      |                       int
main.c:6:32: error: unknown type name 'point'; did you mean 'int'?
    6 | double xmult(point p1,point p2,point p0){
      |                                ^~~~~
      |                                int
main.c:11:14: error: unknown type name 'point'; did you mean 'int'?
   11 | double dmult(point p1,point p2,point p0){
      |              ^~~~~
      |              int
main.c:11:23: error: unknown type name 'point'; did you mean 'int'?
   11 | double dmult(point p1,point p2,point p0){
      |                       ^~~~~
      |                       int
main.c:11:32: error: unknown type name 'point'; did you mean 'int'?
   11 | double dmult(point p1,point p2,point p0){
      |                                ^~~~~
      |                                int
Language: C

point intersection(line u,line v){
	point ret=u.a;
	double t=((u.a.x-v.a.x)*(v.a.y-v.b.y)-(u.a.y-v.a.y)*(v.a.x-v.b.x))
			/((u.a.x-u.b.x)*(v.a.y-v.b.y)-(u.a.y-u.b.y)*(v.a.x-v.b.x));
	ret.x+=(u.b.x-u.a.x)*t;
	ret.y+=(u.b.y-u.a.y)*t;
	return ret;
}

Compiler output:
main.c:1:1: error: unknown type name 'point'; did you mean 'int'?
    1 | point intersection(line u,line v){
      | ^~~~~
      | int
main.c:1:20: error: unknown type name 'line'
    1 | point intersection(line u,line v){
      |                    ^~~~
main.c:1:27: error: unknown type name 'line'
    1 | point intersection(line u,line v){
      |                           ^~~~
Language: C

#include<cstdio>
#include<iostream>
#include<algorithm>
#include <cstdlib>
using namespace std;
typedef long long llong;
struct rect{
	llong x1,y1,x2,y2;	
}mat[110];
llong p[110];
int main()
{
	freopen("d:\\in.txt","w",stdout);
	llong w,h,n,m;
	int t = 10;
	//while(t--){
		srand(time(NULL));
		w = (llong)rand()*rand()+100;
		h = (llong)rand()*rand()+100;
		n = 10;
		cout<<w<<" "<<h<<" "<<n<<" "<<2<<endl;
		for(int i = 0; i < n*4; ++i){
			p[i] = (llong)rand()*rand()%w%h;
		}
		sort(p,p+n*4);
		for(int i = 0; i < n; ++i){
			for(int j = 0; j < 4; ++j){
				cout<<p[i*4+j]<<" ";
			}
			puts(" ");
		}
	//}
	return 0;
}

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

b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))++(b%=9)||a++;}

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))++(b%=9)||a++;}
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'b' [-Wimplicit-int]
main.c:1:3: error: return type defaults to 'int' [-Wimplicit-int]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))++(b%=9)||a++;}
      |   ^~~~
main.c: In function 'main':
main.c:1:3: error: type of 'a' defaults to 'int' [-Wimplicit-int]
main.c:1:21: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))++(b%=9)||a++;}
      |                     ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))++(b%=9)||a++;}
main.c:1:21: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))++(b%=9)||a++;}
      |                     ^~~~~~
main.c:1:21: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:50: error: lvalue required as increment operand
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))++(b%=9)||a++;}
      |                                                  ^~
Language: C

b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((b%=9)++)||a++;}

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((b%=9)++)||a++;}
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'b' [-Wimplicit-int]
main.c:1:3: error: return type defaults to 'int' [-Wimplicit-int]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((b%=9)++)||a++;}
      |   ^~~~
main.c: In function 'main':
main.c:1:3: error: type of 'a' defaults to 'int' [-Wimplicit-int]
main.c:1:21: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((b%=9)++)||a++;}
      |                     ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((b%=9)++)||a++;}
main.c:1:21: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((b%=9)++)||a++;}
      |                     ^~~~~~
main.c:1:21: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:57: error: lvalue required as increment operand
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((b%=9)++)||a++;}
      |                                                         ^~
Language: C

b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))(++b%=9)||a++;}

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))(++b%=9)||a++;}
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'b' [-Wimplicit-int]
main.c:1:3: error: return type defaults to 'int' [-Wimplicit-int]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))(++b%=9)||a++;}
      |   ^~~~
main.c: In function 'main':
main.c:1:3: error: type of 'a' defaults to 'int' [-Wimplicit-int]
main.c:1:21: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))(++b%=9)||a++;}
      |                     ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))(++b%=9)||a++;}
main.c:1:21: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))(++b%=9)||a++;}
      |                     ^~~~~~
main.c:1:21: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:54: error: lvalue required as left operand of assignment
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))(++b%=9)||a++;}
      |                                                      ^~
Language: C

b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((++b)%=9)||a++;}

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((++b)%=9)||a++;}
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'b' [-Wimplicit-int]
main.c:1:3: error: return type defaults to 'int' [-Wimplicit-int]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((++b)%=9)||a++;}
      |   ^~~~
main.c: In function 'main':
main.c:1:3: error: type of 'a' defaults to 'int' [-Wimplicit-int]
main.c:1:21: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((++b)%=9)||a++;}
      |                     ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((++b)%=9)||a++;}
main.c:1:21: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((++b)%=9)||a++;}
      |                     ^~~~~~
main.c:1:21: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:56: error: lvalue required as left operand of assignment
    1 | b;main(a){for(;a-10;printf("%dx%d=%d\n",a,b,a*b))((++b)%=9)||a++;}
      |                                                        ^~
Language: C

i;main(j){for(;i++<9;)for(j=0;j<9;)printf("%dx%d=%d\n",i,j,i*++j);i=0}

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | i;main(j){for(;i++<9;)for(j=0;j<9;)printf("%dx%d=%d\n",i,j,i*++j);i=0}
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'i' [-Wimplicit-int]
main.c:1:3: error: return type defaults to 'int' [-Wimplicit-int]
    1 | i;main(j){for(;i++<9;)for(j=0;j<9;)printf("%dx%d=%d\n",i,j,i*++j);i=0}
      |   ^~~~
main.c: In function 'main':
main.c:1:3: error: type of 'j' defaults to 'int' [-Wimplicit-int]
main.c:1:36: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | i;main(j){for(;i++<9;)for(j=0;j<9;)printf("%dx%d=%d\n",i,j,i*++j);i=0}
      |                                    ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | i;main(j){for(;i++<9;)for(j=0;j<9;)printf("%dx%d=%d\n",i,j,i*++j);i=0}
main.c:1:36: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | i;main(j){for(;i++<9;)for(j=0;j<9;)printf("%dx%d=%d\n",i,j,i*++j);i=0}
      |                                    ^~~~~~
main.c:1:36: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:70: error: expected ';' before '}' token
    1 | i;main(j){for(;i++<9;)for(j=0;j<9;)printf("%dx%d=%d\n",i,j,i*++j);i=0}
      |                                                                      ^
      |                                                                      ;
Language: C

#include <cstdio>
#include <cstring>
#include <algorithm>
#define maxn 52
using namespace std;

int n, m, ans, A[5];
int num[maxn][maxn];
int sum[maxn][maxn];

int getsum(int x1, int y1, int x2, int y2)
{
    return sum[x2][y2] - sum[x1 - 1][y2] - sum[x2][y1 - 1] + sum[x1 - 1][y1 - 1];
}

void work()
{
    while (~scanf("%d%d", &n, &m))
    {
        memset(num, 0, sizeof (num));
        memset(sum, 0, sizeof (sum));
        ans = 0;
        for (int i = 1; i <= n; ++i)
        {
            for (int j = 1; j <= m; ++j)
            {
                scanf("%d", &num[i][j]);
                sum[i][j] = sum[i][j - 1] + num[i][j];
            }
            for (int j = 1; j <= m; ++j)
                sum[i][j] += sum[i - 1][j];
        }
        scanf("%d%d%d", A + 1, A + 2, A + 3);
        sort(A + 1, A + 4);

        int s[4];

        for (int i = 1; i < n; ++i)
        {
            for (int j = i + 1; j < n; ++j)
            {
                s[1] = getsum(1, 1, i, m);
                s[2] = getsum(i + 1, 1, j, m);
                s[3] = getsum(j + 1, 1, n, m);
                sort(s + 1, s + 4);
                if (s[1] == A[1] && s[2] == A[2] && s[3] == A[3]) ans++;
            }
        }

        for (int i = 1; i < m; ++i)
        {
            for (int j = i + 1; j < m; ++j)
            {
                s[1] = getsum(1, 1, n, i);
                s[2] = getsum(1, i + 1, n, j);
                s[3] = getsum(1, j + 1, n, m);
                sort(s + 1, s + 4);
                if (s[1] == A[1] && s[2] == A[2] && s[3] == A[3]) ans++;
            }
        }

        printf("%d\n", ans);
    }
}

int main()
{
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    work();
    return 0;
}

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

#include <iostream>
#include <algorithm>
#include <cmath>
#include <cstdio>
#include <cstring>
#define eps 1e-10
using namespace std;

double ans;

struct node
{
    double x, y;
} p[100010];
int n;

bool cal_less(node p1, node p2)
{
    if (p1.x != p2.x) return p1.x < p2.x;
    else return p1.y < p2.y;
}

double dist(node a, node b)
{
    return sqrt((a.x - b.x)*(a.x - b.x) + (a.y - b.y)*(a.y - b.y));
}

double getmin(double a, double b)
{
    return a < b ? a : b;
}

int vi, vj;

double solve(int l, int r)
{
    if (l == r) return 1000000000;
    if (l == r - 1)
        return dist(p[l], p[r]);
    if (l == r - 2)
        return getmin(getmin(dist(p[l], p[l + 1]), dist(p[l + 1], p[l + 2])),
            dist(p[l], p[l + 2]));
    int i, j, mid = (l + r) >> 1;
    double curmin = getmin(solve(l, mid), solve(mid + 1, r));
    for (i = l; i <= r; i++)
        for (j = i + 1; j <= i + 5 && j <= r; j++)
        {
            if (dist(p[i], p[j]) + eps < curmin)
            {
                curmin = dist(p[i], p[j]);
                vi = i, vj = j;
            }
        }
    return curmin;
}

int id[100010];

int belong(node p)
{
    if (p.x >= 0)
    {
        if (p.y >= 0) return 1;
        else return 3;
    }
    else
    {
        if (p.y >= 0) return 2;
        else return 4;
    }
}

void init()
{
    while (~scanf("%d", &n))
    {
        for (int i = 0; i < n; ++i)
        {
            scanf("%lf%lf", &p[i].x, &p[i].y);
            id[i] = belong(p[i]);
            p[i].x = fabs(p[i].x), p[i].y = fabs(p[i].y);
        }
        sort(p, p + n, cal_less);
        ans = solve(0, n - 1);
        printf("%d %d %d %d\n", vi + 1, id[vi], vj + 1, 5 - id[vj]);
        //printf("%lf\n", ans);
    }
}

int main()
{
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    init();
    return 0;
}

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

#include <stdio.h>
main()
{
  int i,j,ans;

  for(i = 1 ; i <= 9 ; i++)
    {
      for(j = 1 ; j <= 9 ; j++)
	{
	  ans = i x j;
	  printf("%d * %d = %d\n",i,j,ans);
	}
    }
  return 0;
}

Compiler output:
main.c:2:1: error: return type defaults to 'int' [-Wimplicit-int]
    2 | main()
      | ^~~~
main.c: In function 'main':
main.c:10:18: error: expected ';' before 'x'
   10 |           ans = i x j;
      |                  ^~
      |                  ;
Language: C

main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}

Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}
      | ^~~~
main.c: In function 'main':
main.c:1:10: error: expected declaration specifiers before 'for'
    1 | main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}
      |          ^~~
main.c:1:18: error: expected declaration specifiers before 'i'
    1 | main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}
      |                  ^
main.c:1:23: error: expected declaration specifiers before 'i'
    1 | main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}
      |                       ^
main.c:1:35: error: expected declaration specifiers before 'j'
    1 | main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}
      |                                   ^
main.c:1:40: error: expected declaration specifiers before 'printf'
    1 | main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}
      |                                        ^~~~~~
main.c:1:72: error: expected declaration specifiers before 'exit'
    1 | main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}
      |                                                                        ^~~~
main.c:1:80: error: expected declaration specifiers before '}' token
    1 | main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}
      |                                                                                ^
main.c:1:1: error: type of 'i' defaults to 'int' [-Wimplicit-int]
    1 | main(i,j)for(i=1;i<=9;i++)for(j=1;j<=9;printf("%dx%d=%d\n",i,j++,i*j));exit(0);}
      | ^~~~
main.c:1:1: error: type of 'j' defaults to 'int' [-Wimplicit-int]
main.c:2: error: expected '{' at end of input
Language: C

i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'i' [-Wimplicit-int]
main.c:1:3: error: return type defaults to 'int' [-Wimplicit-int]
    1 | i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |   ^~~~
main.c: In function 'main':
main.c:1:3: error: type of 'j' defaults to 'int' [-Wimplicit-int]
main.c:1:47: error: implicit declaration of function 'exit' [-Wimplicit-function-declaration]
    1 | i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                               ^~~~
main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'exit'
  +++ |+#include <stdlib.h>
    1 | i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
main.c:1:47: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch]
    1 | i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                               ^~~~
main.c:1:47: note: include '<stdlib.h>' or provide a declaration of 'exit'
main.c:1:47: error: void value not ignored as it ought to be
    1 | i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                               ^~~~~~~
main.c:1:55: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                                       ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
main.c:1:55: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | i;main(j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                                       ^~~~~~
main.c:1:55: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

main(i,j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}

Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(i,j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      | ^~~~
main.c: In function 'main':
main.c:1:1: error: type of 'i' defaults to 'int' [-Wimplicit-int]
main.c:1:1: error: type of 'j' defaults to 'int' [-Wimplicit-int]
main.c:1:47: error: implicit declaration of function 'exit' [-Wimplicit-function-declaration]
    1 | main(i,j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                               ^~~~
main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'exit'
  +++ |+#include <stdlib.h>
    1 | main(i,j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
main.c:1:47: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch]
    1 | main(i,j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                               ^~~~
main.c:1:47: note: include '<stdlib.h>' or provide a declaration of 'exit'
main.c:1:47: error: void value not ignored as it ought to be
    1 | main(i,j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                               ^~~~~~~
main.c:1:55: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | main(i,j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                                       ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | main(i,j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
main.c:1:55: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | main(i,j){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                                       ^~~~~~
main.c:1:55: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'i' [-Wimplicit-int]
main.c:1:3: warning: data definition has no type or storage class
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |   ^
main.c:1:3: error: type defaults to 'int' in declaration of 'j' [-Wimplicit-int]
main.c:1:5: error: return type defaults to 'int' [-Wimplicit-int]
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |     ^~~~
main.c: In function 'main':
main.c:1:48: error: implicit declaration of function 'exit' [-Wimplicit-function-declaration]
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                                ^~~~
main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'exit'
  +++ |+#include <stdlib.h>
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
main.c:1:48: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch]
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                                ^~~~
main.c:1:48: note: include '<stdlib.h>' or provide a declaration of 'exit'
main.c:1:48: error: void value not ignored as it ought to be
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                                ^~~~~~~
main.c:1:56: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                                        ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
main.c:1:56: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | i;j;main(){for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);}
      |                                                        ^~~~~~
main.c:1:56: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

int main(){
	int i,j;
	for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
}

Compiler output:
main.c: In function 'main':
main.c:3:45: error: implicit declaration of function 'exit' [-Wimplicit-function-declaration]
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                             ^~~~
main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'exit'
  +++ |+#include <stdlib.h>
    1 | int main(){
main.c:3:45: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch]
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                             ^~~~
main.c:3:45: note: include '<stdlib.h>' or provide a declaration of 'exit'
main.c:3:45: error: void value not ignored as it ought to be
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                             ^~~~~~~
main.c:3:53: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                                     ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | int main(){
main.c:3:53: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                                     ^~~~~~
main.c:3:53: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

int main(void){
	int i,j;
	for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:3:45: error: implicit declaration of function 'exit' [-Wimplicit-function-declaration]
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                             ^~~~
main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'exit'
  +++ |+#include <stdlib.h>
    1 | int main(void){
main.c:3:45: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch]
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                             ^~~~
main.c:3:45: note: include '<stdlib.h>' or provide a declaration of 'exit'
main.c:3:45: error: void value not ignored as it ought to be
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                             ^~~~~~~
main.c:3:53: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                                     ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | int main(void){
main.c:3:53: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    3 |         for(i=j=1;i<=9||(i=(j++));i++,j<=9||exit(0))printf("%dx%d=%d\n",j,i,i*j);
      |                                                     ^~~~~~
main.c:3:53: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

main(i,j){for(i=j=1;(i<=9||(i=(j++)&&1))&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j)}

Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(i,j){for(i=j=1;(i<=9||(i=(j++)&&1))&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j)}
      | ^~~~
main.c: In function 'main':
main.c:1:1: error: type of 'i' defaults to 'int' [-Wimplicit-int]
main.c:1:1: error: type of 'j' defaults to 'int' [-Wimplicit-int]
main.c:1:52: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | main(i,j){for(i=j=1;(i<=9||(i=(j++)&&1))&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j)}
      |                                                    ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | main(i,j){for(i=j=1;(i<=9||(i=(j++)&&1))&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j)}
main.c:1:52: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | main(i,j){for(i=j=1;(i<=9||(i=(j++)&&1))&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j)}
      |                                                    ^~~~~~
main.c:1:52: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:80: error: expected ';' before '}' token
    1 | main(i,j){for(i=j=1;(i<=9||(i=(j++)&&1))&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j)}
      |                                                                                ^
      |                                                                                ;
Language: C

main(i,j){for(i=j=1;(i<=9||i=j++>0)&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j);exit(0);}

Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(i,j){for(i=j=1;(i<=9||i=j++>0)&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j);exit(0);}
      | ^~~~
main.c: In function 'main':
main.c:1:1: error: type of 'i' defaults to 'int' [-Wimplicit-int]
main.c:1:1: error: type of 'j' defaults to 'int' [-Wimplicit-int]
main.c:1:29: error: lvalue required as left operand of assignment
    1 | main(i,j){for(i=j=1;(i<=9||i=j++>0)&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j);exit(0);}
      |                             ^
main.c:1:47: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | main(i,j){for(i=j=1;(i<=9||i=j++>0)&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j);exit(0);}
      |                                               ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | main(i,j){for(i=j=1;(i<=9||i=j++>0)&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j);exit(0);}
main.c:1:47: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | main(i,j){for(i=j=1;(i<=9||i=j++>0)&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j);exit(0);}
      |                                               ^~~~~~
main.c:1:47: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:76: error: implicit declaration of function 'exit' [-Wimplicit-function-declaration]
    1 | main(i,j){for(i=j=1;(i<=9||i=j++>0)&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j);exit(0);}
      |                                                                            ^~~~
main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'exit'
  +++ |+#include <stdlib.h>
    1 | main(i,j){for(i=j=1;(i<=9||i=j++>0)&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j);exit(0);}
main.c:1:76: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch]
    1 | main(i,j){for(i=j=1;(i<=9||i=j++>0)&&j<=9;i++)printf("%dx%d=%d\n",j,i,i*j);exit(0);}
      |                                                                            ^~~~
main.c:1:76: note: include '<stdlib.h>' or provide a declaration of 'exit'
Language: C

main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit 0;}

Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit 0;}
      | ^~~~
main.c: In function 'main':
main.c:1:1: error: type of 'a' defaults to 'int' [-Wimplicit-int]
main.c:1:1: error: type of 'b' defaults to 'int' [-Wimplicit-int]
main.c:1:41: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit 0;}
      |                                         ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit 0;}
main.c:1:41: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit 0;}
      |                                         ^~~~~~
main.c:1:41: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:74: error: 'exit' undeclared (first use in this function)
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit 0;}
      |                                                                          ^~~~
main.c:1:1: note: 'exit' is defined in header '<stdlib.h>'; this is probably fixable by adding '#include <stdlib.h>'
  +++ |+#include <stdlib.h>
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit 0;}
main.c:1:74: note: each undeclared identifier is reported only once for each function it appears in
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit 0;}
      |                                                                          ^~~~
main.c:1:78: error: expected ';' before numeric constant
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit 0;}
      |                                                                              ^~
      |                                                                              ;
Language: C

main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit;}

Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit;}
      | ^~~~
main.c: In function 'main':
main.c:1:1: error: type of 'a' defaults to 'int' [-Wimplicit-int]
main.c:1:1: error: type of 'b' defaults to 'int' [-Wimplicit-int]
main.c:1:41: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit;}
      |                                         ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit;}
main.c:1:41: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit;}
      |                                         ^~~~~~
main.c:1:41: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:74: error: 'exit' undeclared (first use in this function)
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit;}
      |                                                                          ^~~~
main.c:1:1: note: 'exit' is defined in header '<stdlib.h>'; this is probably fixable by adding '#include <stdlib.h>'
  +++ |+#include <stdlib.h>
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit;}
main.c:1:74: note: each undeclared identifier is reported only once for each function it appears in
    1 | main(a,b){for(;a<10;a++){for(b=1;b<10;){printf("%dx%d=%d\n",a,b++,a*b);}}exit;}
      |                                                                          ^~~~
Language: C

main(){getch();}

Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(){getch();}
      | ^~~~
main.c: In function 'main':
main.c:1:8: error: implicit declaration of function 'getch' [-Wimplicit-function-declaration]
    1 | main(){getch();}
      |        ^~~~~
Language: C

#include<cstdio>
int main()
{
    int i,j;
    for(i=1;i<=9;i++)
    {
        for(j=1;j<=9;j++) printf("%dx%d=%d\n",i,j,i*j);
    }
    return 0;
}

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

#include <iostream>
#define max_size 1000
using namespace std;
int main()
{
	int d= 0;
    int j = 0;
	for(d = 1;d<= 9;d++)
	{
     for(j = 1;j<=9;j++)
	  printf("%dx%d=%d\n",d ,j,d*j);
	}
	//system("pause");
		 return 0;
}

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

#include<stdio.h>

int main(void){
 int i,j;
 for(i=0;i<10;i++){
  for(j=0;j<10;j++{
   printf("%dx%d=%d",i,j,i*j);
  }
 }
 return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:19: error: expected ')' before '{' token
    6 |   for(j=0;j<10;j++{
      |      ~            ^
      |                   )
main.c:9:2: error: expected expression before '}' token
    9 |  }
      |  ^
Language: C

#include <stdio.h>
#define N 10;

int main(void){
	int i,j;
	for(i=1;i<N;i++)
		for(j=1;j<N;j++)
			printf("%dx%d=%d",i,j,i*j);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:20: error: expected expression before ';' token
    6 |         for(i=1;i<N;i++)
      |                    ^
main.c:7:28: error: expected expression before ';' token
    7 |                 for(j=1;j<N;j++)
      |                            ^
Language: C

#include <stdio.h>
#define N 10;

int main(void){
	int i,j;
	for(i=1;i<N;i++){
		for(j=1;j<N;j++){
			printf("%d",i);
			printf("x%d",j;
			printf("=%d"i*j);
		}
	}
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:20: error: expected expression before ';' token
    6 |         for(i=1;i<N;i++){
      |                    ^
main.c:7:28: error: expected expression before ';' token
    7 |                 for(j=1;j<N;j++){
      |                            ^
main.c:9:39: error: expected ')' before ';' token
    9 |                         printf("x%d",j;
      |                               ~       ^
      |                                       )
main.c:10:42: error: expected ';' before '}' token
   10 |                         printf("=%d"i*j);
      |                                          ^
      |                                          ;
   11 |                 }
      |                 ~
Language: C

#include<stdio.h>

main(){
int a,b;

for(a=1;a<10,a++){
for(b=1;b<10,b++){
printf("%dx%d=%d\n",a,b,a*b);
}
}
return 0;
}

Compiler output:
main.c:3:1: error: return type defaults to 'int' [-Wimplicit-int]
    3 | main(){
      | ^~~~
main.c: In function 'main':
main.c:6:17: error: expected ';' before ')' token
    6 | for(a=1;a<10,a++){
      |                 ^
      |                 ;
main.c:7:17: error: expected ';' before ')' token
    7 | for(b=1;b<10,b++){
      |                 ^
      |                 ;