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

#include<stdio.h>
int main ()
{
????int i,max,min,num,kawase[2000000];
??????
????scanf("%d",&num);??????
??????
???//??????????????°??????????????£????????????
????for(i=0;i<num;i++)
????????{
????????????scanf("%d",&kawase[i]);
????????}
??????
??????
??
????for(i=1;i<num;i++)
????????{
?????????????????? //????????????
????????????????????max=kawase[1]-kawase[0];
????????????????????min=number[0];
???????????????????
????????????????????for(i=1;i<=num-1;i++)
????????????????{
????????????????????//??????????????§?????????????????§????????£??????
????????????????????if(max<kawase[i]-min)
????????????????????????{
????????????????????????????max=kawase[i]-min;
????????????????????????}
????????????????????//????????§???????????????????°???????????????¨????????????????????¨??????????????¨?????
????????????????????if(min>kawase[i])
????????????????????????{
????????????????????????????min=kawase[i];
????????????????????????}
??
????????????????}
??
????????????????}
????????????????????????????????????
????printf("%d\n",max);
??????
????return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:1: error: expected expression before '?' token
    4 | ????int i,max,min,num,kawase[2000000];
      | ^
main.c:5:1: error: expected expression before '?' token
    5 | ??????
      | ^
main.c:6:17: error: 'num' undeclared (first use in this function)
    6 | ????scanf("%d",&num);??????
      |                 ^~~
main.c:6:17: note: each undeclared identifier is reported only once for each function it appears in
main.c:6:22: error: expected expression before '?' token
    6 | ????scanf("%d",&num);??????
      |                      ^
main.c:8:2: warning: trigraph ??/ ignored, use -trigraphs to enable [-Wtrigraphs]
    8 | ???//??????????????°??????????????£????????????
main.c:24:19: warning: trigraph ??/ ignored, use -trigraphs to enable [-Wtrigraphs]
   24 | ????????????????????//??????????????§?????????????????§????????£??????
main.c:29:19: warning: trigraph ??/ ignored, use -trigraphs to enable [-Wtrigraphs]
   29 | ????????????????????//????????§???????????????????°???????????????¨????????????????????¨??????????????¨?????
main.c:40:1: error: expected expression before '?' token
   40 | ??????
      | ^
Language: C

#include<stdio.h>

int main(void){
	int i,j,max,n,r[200000]={},d;

	n=0; max=INT_MIN;
	while(scanf("%d\n",&r[n]) != EOF){		
		n++;
	}
	for(i=0;i<n-1;i++){
		for(j=i+1;j<n;j++){
			d = r[j]-r[i];
			if(d>max) max=d;
		}
	}
	printf("%d\n",max);

	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:18: error: 'INT_MIN' undeclared (first use in this function)
    6 |         n=0; max=INT_MIN;
      |                  ^~~~~~~
main.c:2:1: note: 'INT_MIN' is defined in header '<limits.h>'; this is probably fixable by adding '#include <limits.h>'
    1 | #include<stdio.h>
  +++ |+#include <limits.h>
    2 | 
main.c:6:18: note: each undeclared identifier is reported only once for each function it appears in
    6 |         n=0; max=INT_MIN;
      |                  ^~~~~~~
Language: C

#include "stdio.h"

int main(int argc, char const *argv[])
{
	int n;

	scanf("%d",&n);
	
	int a[n]; 
	int max,min;
	
	for(int i=0;i<n;i++)
	{
		scanf("%d",&a[i])
	}

	max=a[1]-a[0];
	min=a[0]	
	for (int j = 0; j < n; ++j)
	{
		if(max<a[j]-min)
		{
			max=a[j]-min;
		}
		if(min>a[j])
		{
			min=a[j]
		}
	}

	printf("%d\n",max );

	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:14:34: error: expected ';' before '}' token
   14 |                 scanf("%d",&a[i])
      |                                  ^
      |                                  ;
   15 |         }
      |         ~                         
main.c:18:24: error: expected ';' before 'for'
   18 |         min=a[0]
      |                 ^       
      |                        ;
   19 |         for (int j = 0; j < n; ++j)
      |         ~~~
Language: C

#include <stdio.h>
#define nMax 200000
int main(void){
int min,i,n,rMax;
min = nMax;
rMax = 0;
for(i=0;i<t;i++){
    scanf("%d",&n);
    if(n<min)min = n;
    if(n-min>rMax)n-min = rMax;
    }
printf("%d\n",rMax);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:11: error: 't' undeclared (first use in this function)
    7 | for(i=0;i<t;i++){
      |           ^
main.c:7:11: note: each undeclared identifier is reported only once for each function it appears in
main.c:10:25: error: lvalue required as left operand of assignment
   10 |     if(n-min>rMax)n-min = rMax;
      |                         ^
Language: C

#include<stdio.h>
#define MAX = 2000000
int main ()
{
	int i,max,min,num,kawase[MAX];	??????
	scanf("%d",&num);??????
	//??????????????°??????????????£????????????
	for(i=0;i<num;i++)
????????{
		scanf("%d",&kawase[i]);
????????}
	for(i=1;i<num;i++){
		//????????????
????????????????max=kawase[1]-kawase[0];
????????????????min=kawase[0];
????????????????for(i=1;i<=num-1;i++){
????????????????????//??????????????§?????????????????§????????£??????
????????????????????if(max<kawase[i]-min){
			max=kawase[i]-min;
????????????????????}
????????????????????//????????§???????????????????°???????????????¨????????????????????¨??????????????¨?????
????????????????????if(min>kawase[i])
????????????????????????{
????????????????????????????min=kawase[i];
????????????????????????}
??
????????????????}
??
????????????????}
????????????????????????????????????
????printf("%d\n",max);
??????
????return 0;
}

Compiler output:
main.c: In function 'main':
main.c:2:13: error: expected expression before '=' token
    2 | #define MAX = 2000000
      |             ^
main.c:5:34: note: in expansion of macro 'MAX'
    5 |         int i,max,min,num,kawase[MAX];  ??????
      |                                  ^~~
main.c:5:41: error: expected expression before '?' token
    5 |         int i,max,min,num,kawase[MAX];  ??????
      |                                         ^
main.c:6:26: error: expected expression before '?' token
    6 |         scanf("%d",&num);??????
      |                          ^
main.c:17:19: warning: trigraph ??/ ignored, use -trigraphs to enable [-Wtrigraphs]
   17 | ????????????????????//??????????????§?????????????????§????????£??????
main.c:21:19: warning: trigraph ??/ ignored, use -trigraphs to enable [-Wtrigraphs]
   21 | ????????????????????//????????§???????????????????°???????????????¨????????????????????¨??????????????¨?????
main.c:32:1: error: expected expression before '?' token
   32 | ??????
      | ^
Language: C

#include<stdio.h>

int main(void){
	int i,j,max,n,r[200000]={},d;

	max=0;
	scanf("%d,"&n)
	for(i=0;i<n;i++) scanf("%d\n",&r[n]);
	for(i=0;i<n-1;i++){
		for(j=i+1;j<n;j++){
			d = r[j]-r[i];
			if(d>max||(i==0&&j==1)) max=d;
		}
	}
	printf("%d\n",max);

	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:20: error: invalid operands to binary & (have 'char *' and 'int')
    7 |         scanf("%d,"&n)
      |               ~~~~~^
      |               |
      |               char *
main.c:7:23: error: expected ';' before 'for'
    7 |         scanf("%d,"&n)
      |                       ^
      |                       ;
    8 |         for(i=0;i<n;i++) scanf("%d\n",&r[n]);
      |         ~~~
Language: C

#include <stdio.h>
#define nMax 200000
int main(void){
   int min,i,t,n,rMax;
   min = nMax;
   rMax = 0;
   scanf("%d",&t);
   for(i=0;i<t;i++){
      scanf("%d",&n);
      if(n < min)min = n;
      if(n-min > rMax)n-min = rMax;
      }
printf("%d\n",rMax);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:11:29: error: lvalue required as left operand of assignment
   11 |       if(n-min > rMax)n-min = rMax;
      |                             ^
Language: C

#include<stdio.h>

int main(void){
	int i,j,max,n,r[200000]={},d;

	max=0;
	scanf("%d,"&n);
	for(i=0;i<n;i++) scanf("%d\n",&r[n]);
	for(i=0;i<n-1;i++){
		for(j=i+1;j<n;j++){
			d = r[j]-r[i];
			if(d>max||(i==0&&j==1)) max=d;
		}
	}
	printf("%d\n",max);

	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:20: error: invalid operands to binary & (have 'char *' and 'int')
    7 |         scanf("%d,"&n);
      |               ~~~~~^
      |               |
      |               char *
Language: C

#include<stdio.h>

int main(){
	int i,j,R[200000],n,minv,maxv;
	
	scanf("%d",&n);
	
	for(i=0;i<n;i++)
	scanf("%d",&R[i};
	
	maxv=R[1]-R[0];
	minv=R[0];
	
	for(j=1;j<n;j++){
		if(maxv<R[j]-minv) maxv=R[j]-minv;
		if(minv>R[j]) minv = R[j];
	}
	printf("%d\n",maxv);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:9:24: error: expected ']' before '}' token
    9 |         scanf("%d",&R[i};
      |                        ^
      |                        ]
main.c:9:24: error: expected ')' before '}' token
    9 |         scanf("%d",&R[i};
      |              ~         ^
      |                        )
main.c:9:24: error: expected ';' before '}' token
    9 |         scanf("%d",&R[i};
      |                        ^
      |                        ;
main.c: At top level:
main.c:11:9: warning: data definition has no type or storage class
   11 |         maxv=R[1]-R[0];
      |         ^~~~
main.c:11:9: error: type defaults to 'int' in declaration of 'maxv' [-Wimplicit-int]
main.c:11:14: error: 'R' undeclared here (not in a function)
   11 |         maxv=R[1]-R[0];
      |              ^
main.c:12:9: warning: data definition has no type or storage class
   12 |         minv=R[0];
      |         ^~~~
main.c:12:9: error: type defaults to 'int' in declaration of 'minv' [-Wimplicit-int]
main.c:14:9: error: expected identifier or '(' before 'for'
   14 |         for(j=1;j<n;j++){
      |         ^~~
main.c:14:18: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
   14 |         for(j=1;j<n;j++){
      |                  ^
main.c:14:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before '++' token
   14 |         for(j=1;j<n;j++){
      |                      ^~
main.c:18:16: error: expected declaration specifiers or '...' before string constant
   18 |         printf("%d\n",maxv);
      |                ^~~~~~
main.c:18:23: error: expected declaration specifiers or '...' before 'maxv'
   18 |         printf("%d\n",maxv);
      |                       ^~~~
main.c:19:9: error: expected identifier or '(' before 'return'
   19 |         return 0;
      |         ^~~~~~
main.c:20:1: error: expected identifier or '(' before '}' token
   20 | }
      | ^
Language: C

#include<stdio.h>

int main(){
    
    int i,j,k;
    long max=-1000000000;
    int n;
    int r[200000];
    
    scanf("%d",&n);
    
    for(k=0;k<n;k++){
        scanf("%d",&r[k]);
    }
    
    for(j=0;j<n;j++){
        for(i=0;i<j;i++){
            if(r[j]-r[i]>=max){
                max=r[j]-r[i];
            }
        }
    }
    
    printf("%ld\n",max);
    
    
    return 0;
}
    
    
    return 0;
}

Compiler output:
main.c:31:5: error: expected identifier or '(' before 'return'
   31 |     return 0;
      |     ^~~~~~
main.c:32:1: error: expected identifier or '(' before '}' token
   32 | }
      | ^
Language: C

#include <stdio.h>

int main(void){
	int n,sub;
	int i,j;
	int max=-1000000000;

	scanf("%d",&n);
	int tmp[n];

	for(i=0;i<n-1;i++){
		scanf("%d",&tmp[i]);
	}
	for(i=0;i<n-1;i++){
		for(j=1;j<n;j++){
			sub=tmp[j]-tmp[i];
			if(max<sub) max=sub;
		}
	}
	printf("%d\n",max);
	ret

Compiler output:
main.c: In function 'main':
main.c:21:9: error: 'ret' undeclared (first use in this function)
   21 |         ret
      |         ^~~
main.c:21:9: note: each undeclared identifier is reported only once for each function it appears in
main.c:21:12: error: expected ';' at end of input
   21 |         ret
      |            ^
      |            ;
main.c:21:9: error: expected declaration or statement at end of input
   21 |         ret
      |         ^~~
Language: C

#include<stdio.h>

int main(){
	int i,j,R[200000],n,minv,maxv;
	
	scanf("%d",&n);
	
	for(i=0;i<n;i++)
	scanf("%d",&R[i);
	
	maxv=R[1]-R[0];
	minv=R[0];
	
	for(j=1;j<n;j++){
		if(maxv<R[j]-minv) maxv=R[j]-minv;
		if(minv>R[j]) minv = R[j];
	}
	printf("%d\n",maxv);
	return 0;
}
	

Compiler output:
main.c: In function 'main':
main.c:9:24: error: expected ']' before ')' token
    9 |         scanf("%d",&R[i);
      |                        ^
      |                        ]
Language: C

#include <stdio.h>
#include <limits.h>
int main(void)
{
    int n;
    scanf("%d",&n);
    long n_max=0,n_min=LONG_MAX;
    long doll[200000]={};
    int i;

    for(i=0;i<n;i++)
    {
        scanf("%d",&doll[i]);
        if(doll[i]>n_max)
        {
            n_max=doll[i];
        }
        if(doll[i]<n_min)
        {
            n_min=doll[i];
        }
    }



    int j;
    long max=LONG_MIN;
    long flag=n_max-n_min;
    int tem=0;

    for(i=0;i<n;i++)
    {
        if(n_max-doll[i]>max && )
        {
            for(j=i+1;j<n;j++)
            {
                if(doll[j]-doll[i]>max)
                {
                    max=doll[j]-doll[i];
                    if(flag==max)
                    {
                        tem=1;
                        break;
                    }
                }
            }
        }
        if(tem==1)
        {
            break;
        }
    }
    printf("%d\n",max);

    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:33:33: error: expected expression before ')' token
   33 |         if(n_max-doll[i]>max && )
      |                                 ^
Language: C

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

int main(){
	int n;
	int *R = NULL;
	int j;
	int max = - 1000000000;
	int min;
	int temp;
	scanf("%d",&n);
	R = (int *)malloc(4*n);
	for(i=0;i<n;i++){
		scanf("%d",&R[i]);
	}
	min = R[0];
	for(j=1;j<n;j++){
		temp = R[j] - min;
		if(temp > max){
			max = temp;
		}
		if(R[j] < min){
			min = R[j];
		}
	}
	printf("%d\n",max);
	free(R);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:13:13: error: 'i' undeclared (first use in this function)
   13 |         for(i=0;i<n;i++){
      |             ^
main.c:13:13: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h
const int N = 200000;

int main(void)
{
	int n,i,j,R[N];
	int maxv,minv;
	
	scanf("%d",&n);
	
	for(i=0;i<n;i++);
		scanf("%d",&R[i]);
		
		minv=R[0];
		maxv=R[1]-R[0];
		
	for(i=1;i<n-1;i++){
		if(R[i]-minv>maxv) maxv=r[i]-minv;
		if(R[i]<minv) minv=R[i];
		}
		
		printf("%d\n",maxv);
	return 0;
}

Compiler output:
main.c:1:18: error: missing terminating > character
    1 | #include <stdio.h
      |                  ^
main.c: In function 'main':
main.c:18:41: error: 'r' undeclared (first use in this function)
   18 |                 if(R[i]-minv>maxv) maxv=r[i]-minv;
      |                                         ^
main.c:18:41: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h
const int N = 200000;

int main(void)
{
	int n,i,j,R[N];
	int maxv,minv;
	
	scanf("%d",&n);
	
	for(i=0;i<n;i++);
		scanf("%d",&R[i]);
		
		minv=R[0];
		maxv=R[1]-R[0];
		
	for(i=1;i<n-1;i++){
		if(R[i]-minv>maxv) maxv=R[i]-minv;
		if(R[i]<minv) minv=R[i];
		}
		
		printf("%d\n",maxv);
	return 0;
}

Compiler output:
main.c:1:18: error: missing terminating > character
    1 | #include <stdio.h
      |                  ^
Language: C

#include <stdio.h>

#define LARGE 50000
#define SMALL -50000

int main(void){
	int min=LARGE,max=SMALL;
	int n,i,num;

	scanf("%d",&n);
	for(i=0;i<n;i++){
		scanf("%d",&num);
		if(num-min>max) max=num-min;
		if(num<min)	min=num;		
	}

	printf("%d\n",max);

	return 0;
}}

Compiler output:
main.c:20:2: error: expected identifier or '(' before '}' token
   20 | }}
      |  ^
Language: C

#include<stdio.h>
int val[200000];
int main(void){
	int n,maxd,min,i,j;
	scanf("%d",&n);
	for(i=0;i<n;i++){
		scanf("%d",&val[i]);
	}
	min=maxd=-2000000000;
	for(i=0;i<n-1;i++){
		if(val[i]<min){
			min=val[i];
			continue;
		}
		if(val[i+1]-min>maxd){
			maxd=val[i+1]-min;
		}
	}
	printf("%d\n",max);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:19:23: error: 'max' undeclared (first use in this function); did you mean 'maxd'?
   19 |         printf("%d\n",max);
      |                       ^~~
      |                       maxd
main.c:19:23: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h
const int N = 200000;

int main(void)
{
	int n,i,j,R[N];
	int maxv,minv;
	
	scanf("%d",&n);
	
	for(i=0;i<n;i++);
		scanf("%d",&R[i]);
		
		minv=R[0];
		maxv=R[1]-R[0];
		
	for(i=1;i<n-1;i++){
		if((R[i]-minv) > maxv) maxv=R[i]-minv;
		if(R[i]<minv) minv=R[i];
		}
		
		printf("%d\n",maxv);
	return 0;
}

Compiler output:
main.c:1:18: error: missing terminating > character
    1 | #include <stdio.h
      |                  ^
Language: C

#include <stdio.h>
#include <limits.h>
int main(void) {
	int i, n, j, max = INT_MIN, min = INT_MAX, R[1000];
	scanf("%d", &n);
	int R[n];
	for (i = 0; i < n; i++) {
		scanf("%d", &R[i]);
	}
	for(i = 0; i < n; i++){
		if (min > R[i]){
			min = R[i];
			num = i;
		}
	}
	for(i=num;i<n;i++){
		if(max<R[i]-min){
			max = R[i]-min;
		}
	}
	printf("%d\n", max);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:13: error: redeclaration of 'R' with no linkage
    6 |         int R[n];
      |             ^
main.c:4:52: note: previous declaration of 'R' with type 'int[1000]'
    4 |         int i, n, j, max = INT_MIN, min = INT_MAX, R[1000];
      |                                                    ^
main.c:13:25: error: 'num' undeclared (first use in this function)
   13 |                         num = i;
      |                         ^~~
main.c:13:25: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
int a[202020];
int main(){
int n,i,j,m,max=0,max2=0;
bool s=1;
scanf("%d",&n);
for(i=0;i<n;i++){
    scanf("%d",&a[i]);
}
for(i=0;i<n-1;i++){
    if(a[i+1]-a[i]>0){
        max+=a[i+1]-a[i];
    }
    else {s=0;max2=max;max=0;}
    if(max2<max)max2=max;
}
printf("%d",max2);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:1: error: unknown type name 'bool'
    5 | bool s=1;
      | ^~~~
main.c:2:1: note: 'bool' is defined in header '<stdbool.h>'; this is probably fixable by adding '#include <stdbool.h>'
    1 | #include<stdio.h>
  +++ |+#include <stdbool.h>
    2 | int a[202020];
Language: C

#include<iostream>
#include<algorithm>
const int MAX = 200005;
using namespace std;
int main()
{
    int a[MAX];
    int n;
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>a[i];
    }
    int maxv = a[1]-a[0];
    int mina = a[0];
    for(int i=1;i<n;i++)
    {
        maxv = max(maxv,a[i]-mina);
        mina = min(a[i],mina);
    }
    cout<<maxv;
    return 0;
}

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

#include<stdio.h>

int main(){
	int max,min,i,n,r[200000]={};
	scanf(%d,&n);
	for(i=0;i<n;i++) scanf(%d,&r[i]);
	min = r[i];
	max=min;	
	for(i=0;i<n;i++){
		min = r[i];
		if(min>r[i+1]) {
			min = r[i+1];
			max = min;
		}
		if(max<r[i+1]) max = r[i+1];
	}

	if(max!=min){
		max=min;
		for(i=0;i<n;i++){
			min = r[i];
			if(min<r[i+1]) min = r[i+1];
		}	
	}

	printf("%d\n",max-min);

	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:15: error: expected expression before '%' token
    5 |         scanf(%d,&n);
      |               ^
main.c:6:32: error: expected expression before '%' token
    6 |         for(i=0;i<n;i++) scanf(%d,&r[i]);
      |                                ^
Language: C

#include<stdio.h>

int main(){
	int max,min,i,n,r[200000]={};
	scanf("%d",&n);
	for(i=0;i<n;i++) scanf(%d,&r[i]);
	min = r[i];
	max=min;	
	for(i=0;i<n;i++){
		min = r[i];
		if(min>r[i+1]) {
			min = r[i+1];
			max = min;
		}
		if(max<r[i+1]) max = r[i+1];
	}

	if(max!=min){
		max=min;
		for(i=0;i<n;i++){
			min = r[i];
			if(min<r[i+1]) min = r[i+1];
		}	
	}

	printf("%d\n",max-min);

	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:32: error: expected expression before '%' token
    6 |         for(i=0;i<n;i++) scanf(%d,&r[i]);
      |                                ^
Language: C

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

int main()
{
  int i, j, n, max, pmin, num;
  scanf("%d", &n);
  scanf("%d", &pmin);
  for(i=1; i<n; i++){
    scanf("%d", &num);
    max = (max > num-pmin ? max : num-pmin);
    min = (min < num ? min : num); 
  }
  printf("%d\n", max);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:12:5: error: 'min' undeclared (first use in this function); did you mean 'pmin'?
   12 |     min = (min < num ? min : num);
      |     ^~~
      |     pmin
main.c:12:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
int main(void)
{
	int i,j;
	int n;
	int maxv=-1000000001;
	
	scanf("%d",&n);
	int A[n];
	for (i=0;i<n;i++){
		scanf("%d",&A[i]);
	}
	minv=A[0];
	
	for (i=0;i<n-1;i++){
		if (maxv<R[i]-minv){
			maxv=R[i]-minv;
		}
		if (minv>R[i]){
			minv=R[i];
		}
	}
	
	printf("%d\n",maxv);
	
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:13:9: error: 'minv' undeclared (first use in this function)
   13 |         minv=A[0];
      |         ^~~~
main.c:13:9: note: each undeclared identifier is reported only once for each function it appears in
main.c:16:26: error: 'R' undeclared (first use in this function)
   16 |                 if (maxv<R[i]-minv){
      |                          ^
Language: C

#include<stdio.h>
int main(void)
{
	int i,j;
	int n;
	int maxv=-1000000001,minv;
	
	scanf("%d",&n);
	int A[n];
	for (i=0;i<n;i++){
		scanf("%d",&A[i]);
	}
	minv=A[0];
	
	for (i=0;i<n-1;i++){
		if (maxv<R[i]-minv){
			maxv=R[i]-minv;
		}
		if (minv>R[i]){
			minv=R[i];
		}
	}
	
	printf("%d\n",maxv);
	
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:16:26: error: 'R' undeclared (first use in this function)
   16 |                 if (maxv<R[i]-minv){
      |                          ^
main.c:16:26: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
#include <stdlib.h>
int main(void){

    int num;
    int max,min;
    int n,n1,n2;
    int i;

    scanf("%d",&num);
    scanf("%d",&n1);
    scanf("%d",&n2);

    max = n2-n1;
    min = n1;

    //printf("n:%d n1:%d n2:%d\n",num,n1,n2);

    for( i = 0 ; i < num - 2 ; i++ ){

      scanf("%d",&n);
      //printf("%d:%d\n",i,n);
      if( max < n - min )
        max = n - min;
      if( min > n )
        min = n;
    }

    if( max < n1-min )
      max = n1-min;
    if( max < n2 - min )
      max = n2 -min
    //printf("%d %d\n",n1-min,n2-min);

    printf("%d\n",max);


    return 0;

}

Compiler output:
main.c: In function 'main':
main.c:32:20: error: expected ';' before 'printf'
   32 |       max = n2 -min
      |                    ^
      |                    ;
......
   35 |     printf("%d\n",max);
      |     ~~~~~~
Language: C

#include<stdio.h>
#include<stdlib.h>
 
int main(){
  int i,n,R[200000],min,max;
 
  scanf("%d",&n);
  
  for(i=0;i<n;i++){
    scanf("%d",&R[i]);
    if(R[i]<1 || R[i]>1000000000){
      exit(8);
    }
  }
 
  max=R[1]-R[0];
  min=R[0];
 
  for(i=1;i<n;i++){
    if(max<R[i]-min){
      max=R[i]-min;
    }
    if(min>R[i]){
      min=R[i];
    }
  } 
 
  printf("%d\n",max);
 
  return 0;

Compiler output:
main.c: In function 'main':
main.c:30:3: error: expected declaration or statement at end of input
   30 |   return 0;
      |   ^~~~~~
Language: C

#include<stdio.h>

int main()
{
  int max, n, i, j, a[200000];

  scanf("%d", &n);
  for(i=0; i<n; i++)
    {
      scanf("%d", &a[i]);
    }

  max = a[1]-a[0];
    
  for(j=2; j<n; j++)
    {
      for(i=0; i<j; i++)
	{
	  if(a[j]-a[i] > max) max = a[j]-a[i];
	}
    }

  printf("%d\n", max);
  
  return 0;

Compiler output:
main.c: In function 'main':
main.c:25:3: error: expected declaration or statement at end of input
   25 |   return 0;
      |   ^~~~~~
Language: C


  for (i = 0; i < n; i++)
    scanf("%d", &r[i]);

  max = r[1] - r[0];
  min = r[0];
  for (i = 1; i < n - 1; i++) {
    if((r[i] - min) > max) max = r[i] - min;

    if(r[i] < min) min = r[i];
  }

  printf("%d\n", max);

  return 0;
  

Compiler output:
main.c:2:3: error: expected identifier or '(' before 'for'
    2 |   for (i = 0; i < n; i++)
      |   ^~~
main.c:2:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    2 |   for (i = 0; i < n; i++)
      |                 ^
main.c:2:23: error: expected '=', ',', ';', 'asm' or '__attribute__' before '++' token
    2 |   for (i = 0; i < n; i++)
      |                       ^~
main.c:5:3: warning: data definition has no type or storage class
    5 |   max = r[1] - r[0];
      |   ^~~
main.c:5:3: error: type defaults to 'int' in declaration of 'max' [-Wimplicit-int]
main.c:5:9: error: 'r' undeclared here (not in a function)
    5 |   max = r[1] - r[0];
      |         ^
main.c:6:3: warning: data definition has no type or storage class
    6 |   min = r[0];
      |   ^~~
main.c:6:3: error: type defaults to 'int' in declaration of 'min' [-Wimplicit-int]
main.c:7:3: error: expected identifier or '(' before 'for'
    7 |   for (i = 1; i < n - 1; i++) {
      |   ^~~
main.c:7:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    7 |   for (i = 1; i < n - 1; i++) {
      |                 ^
main.c:7:27: error: expected '=', ',', ';', 'asm' or '__attribute__' before '++' token
    7 |   for (i = 1; i < n - 1; i++) {
      |                           ^~
main.c:13:10: error: expected declaration specifiers or '...' before string constant
   13 |   printf("%d\n", max);
      |          ^~~~~~
main.c:13:18: error: expected declaration specifiers or '...' before 'max'
   13 |   printf("%d\n", max);
      |                  ^~~
main.c:15:3: error: expected identifier or '(' before 'return'
   15 |   return 0;
      |   ^~~~~~
Language: C

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

int main() {

	int num;
	int value;

	int min_value = 1000000000;
	int profit = 0;

	scanf("%d", &num);

	//data = (int *)malloc(sizeof(int) * num);

	for (int i = 0; i < num; i++) {
		scanf("%d", &value);

		min_value = min(min_value, value);
		profit = max(profit, value - min_value);

	}



	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:19:29: error: implicit declaration of function 'min'; did you mean 'main'? [-Wimplicit-function-declaration]
   19 |                 min_value = min(min_value, value);
      |                             ^~~
      |                             main
main.c:20:26: error: implicit declaration of function 'max'; did you mean 'fmax'? [-Wimplicit-function-declaration]
   20 |                 profit = max(profit, value - min_value);
      |                          ^~~
      |                          fmax
Language: C

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

int main() {
	int i;
	int num;
	int value;

	int min_value = 1000000000;
	int profit = 0;

	scanf("%d", &num);

	//data = (int *)malloc(sizeof(int) * num);

	for (i = 0; i < num; i++) {
		scanf("%d", &value);

		min_value = min(min_value, value);
		profit = max(profit, value - min_value);

	}



	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:19:29: error: implicit declaration of function 'min'; did you mean 'main'? [-Wimplicit-function-declaration]
   19 |                 min_value = min(min_value, value);
      |                             ^~~
      |                             main
main.c:20:26: error: implicit declaration of function 'max'; did you mean 'fmax'? [-Wimplicit-function-declaration]
   20 |                 profit = max(profit, value - min_value);
      |                          ^~~
      |                          fmax
Language: C

#Include<stdio.h>

int main() {
  int n,R[200000],minv,maxv,j;
  // while(1) {
  scanf("%d",&n);
  //  if(2 > n || n > 200000) continue;
  // }
  for(j = 0;j < n;j++) {
    scanf("%d",&R[j]);
    if(1 > R[j] || R[j] > 1000*1000*1000) j=j-1;
  }
  maxv = R[1]-R[0];
  minv = R[0];
  
  for(j=1;j<n-1;j++) {
    if(maxv > R[j]-minv) maxv = maxv;
    else maxv = R[j]-minv;
    if(minv < R[j]) minv =minv;
    else minv = R[j];
  }
  printf("%d\n",maxv);
  return 0;
}

Compiler output:
main.c:1:2: error: invalid preprocessing directive #Include; did you mean #include?
    1 | #Include<stdio.h>
      |  ^~~~~~~
      |  include
main.c: In function 'main':
main.c:6:3: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    6 |   scanf("%d",&n);
      |   ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #Include<stdio.h>
main.c:6:3: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    6 |   scanf("%d",&n);
      |   ^~~~~
main.c:6:3: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:22:3: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   22 |   printf("%d\n",maxv);
      |   ^~~~~~
main.c:22:3: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:22:3: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:22:3: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

#include<stdio.h>
#define N 200000

int main(){
  int x,i,j;
  int s[N],b;
  long int MAX, MIN;
    scanf("%d",&x);
  for(i=0;i<x;i++){
    scanf("%d",&s[i]);
  }
   MAX = s[1] - s[0];
   MIN = s[0];
 
  for(i=1;i<x-1;i++){
    if(MAX < s[i]-MIN) MAX = s[i]-MIN;
    else MAX = MAX;
    if(MIN > s[i]) MIN = s[i];
    else MIN = MIN:
  }
  printf("%ld\n",MAX);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:19:19: error: expected ';' before ':' token
   19 |     else MIN = MIN:
      |                   ^
      |                   ;
Language: C

#include<stdio.h>

int main(void)
{
	int n,r[],i,j,a;
	int max=-1000000000,max1=-1000000000;
	
	scanf("%d",&n);
	for(i=0;i<n;i++){
		scanf("%d",&r[i]);
	}
	
	for(i=0;i<n-1;i++){
		for(j=i+1;j<n;j++){
			a=r[j]-r[i];
			if(max1<a){
				max1=a;
			}
		}
		if(max<max1){
			max=max1;
		}
	}
	
	printf("%d\n",max);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:15: error: array size missing in 'r'
    5 |         int n,r[],i,j,a;
      |               ^
Language: C

#include <stdio.h>

int main(void){
    long n;
    long num[200000];
    long i, j;
    int max = -2000000000;

    scanf("%ld", &n);

    for(i=0; i<n; i++){
        scanf("%ld", &num[i]);
    }
    min = num[0];

    for(i=0; i<n; i++){
        if(max < num[j] - min) max = num[j];
        if(num[j] < min) min = num[j];
    }



	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:14:5: error: 'min' undeclared (first use in this function); did you mean 'main'?
   14 |     min = num[0];
      |     ^~~
      |     main
main.c:14:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C

minv = R[0]
for j ??? 1 ?????? n-1 ?????§
  maxv = (maxv ??¨ R[j]-minv ???????????§?????????)
  minv = (minv ??¨ R[j] ??????????°??????????)

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | minv = R[0]
      | ^~~~
main.c:1:1: error: type defaults to 'int' in declaration of 'minv' [-Wimplicit-int]
main.c:1:8: error: 'R' undeclared here (not in a function)
    1 | minv = R[0]
      |        ^
main.c:2:1: error: expected ',' or ';' before 'for'
    2 | for j ??? 1 ?????? n-1 ?????§
      | ^~~
main.c:2:29: error: stray '\302' in program
    2 | for j ??? 1 ?????? n-1 ?????<U+00A7>
      |                             ^~~~~~~~
main.c:3:41: error: stray '\302' in program
    3 |   maxv = (maxv ??<U+00A8> R[j]-minv ???????????<U+00A7>?????????)
      |                                                ^~~~~~~~
main.c:3:49: warning: trigraph ??) ignored, use -trigraphs to enable [-Wtrigraphs]
    3 |   maxv = (maxv ??¨ R[j]-minv ???????????§?????????)
main.c:4:35: error: stray '\302' in program
    4 |   minv = (minv ??<U+00A8> R[j] ??????????<U+00B0>??????????)
      |                                          ^~~~~~~~
main.c:4:44: warning: trigraph ??) ignored, use -trigraphs to enable [-Wtrigraphs]
    4 |   minv = (minv ??¨ R[j] ??????????°??????????)
Language: C

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

int main(void) {
	int n;
	int *Rt;
	int max;
	int i, j;
	
	scanf("%d", &n);
	
	Rt = (int *)malloc( sizeof(int) * n );
	
	for (i = 0; i < n; i++) {
		scanf("%d", &Rt[i]);
	}
	
	max = Rt[1] - Rt[0];

	for (i = 0; i < (n - 1); i++) {
		for (j = (i + 1); j < n; j++) {
			printf("i = %d, j = %d\n", i , j);
			if ( (Rt[j] - Rt[i]) > max ) {
				max = (Rt[j] - Rt[i])
			}
		}
	}

	printf("%d\n", max);


	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:24:54: error: expected ';' before '}' token
   24 |                                 max = (Rt[j] - Rt[i])
      |                                                      ^
      |                                                      ;
   25 |                         }
      |                         ~
Language: C

#include <stdio.h>


void trace(int A[], int N) {
	int i;
	for ( i = 0; i < N; i++ ) {
		if ( i > 0 ) {
			printf(" "); 
		}
		printf("%d", A[i]);
	}
	printf("\n");
}

int insertionSort(int A[], int N) {
	int j, i, v;
	for ( i = 1; i < N; i++ ) {
		j = i - 1;
		
		while (j >= 0 && A[j] > A[i]) {
			A[j + 1] = A[j]???
			j--;
		}
		
		A[j + 1] = A[i];
		trace(A, N);
	}
}

int main(void) {
	int N, i, j;
	int A[100];
	
	scanf("%d", &N);
	
	for ( i = 0; i < N; i++ ) {
		scanf("%d", &A[i]);
	}
	
	trace(A, N);
	insertionSort(A, N);

	return 0;
}

Compiler output:
main.c: In function 'insertionSort':
main.c:21:41: error: expected expression before '?' token
   21 |                         A[j + 1] = A[j]???
      |                                         ^
Language: C

#include <stdio.h>


void trace(int A[], int N) {
	int i;
	for ( i = 0; i < N; i++ ) {
		if ( i > 0 ) {
			printf(" "); 
		}
		printf("%d", A[i]);
	}
	printf("\n");
}

int insertionSort(int A[], int N) {
	int j, i;
	for ( i = 1; i < N; i++ ) {
		j = i - 1;
		
		while (j >= 0 && A[j] > A[i]) {
			A[j + 1] = A[j]???
			j--;
		}
		
		A[j + 1] = A[i];
		trace(A, N);
	}
}

int main(void) {
	int N, i, j;
	int A[100];
	
	scanf("%d", &N);
	
	for ( i = 0; i < N; i++ ) {
		scanf("%d", &A[i]);
	}
	
	trace(A, N);
	insertionSort(A, N);

	return 0;
}

Compiler output:
main.c: In function 'insertionSort':
main.c:21:41: error: expected expression before '?' token
   21 |                         A[j + 1] = A[j]???
      |                                         ^
Language: C

#include<stdio.h>
#define max(a,b) a>b?a:b
int main(){
    int i, j, n, a[200000], m, MAX=-2000000000;
    scanf("%d", &n);
    for(i=0; i<n; i++){
        scanf("%d", &a[i]);
        for(j=0; j<i; j++){
            m=a[i]-a[j];
            MAX=max(m, MAX);
    }
    printf("%d\n", MAX);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:14:1: error: expected declaration or statement at end of input
   14 | }
      | ^
Language: C

#include<iostream>
#include<algorithm>
using namespace std;
static const int MAX = 200000;

int main()
{
	int R[MAX],n;
	cin >> n;
	for(int i=0;i<n;i++)
		cin >> R[i];
		
	int maxv = -2000000000;  //?置一个足?小的初始?
	int minv = R[0];
	
	for(int i=1;i<n;i++){
		maxv = max(maxv,R[i] - minv);  //更新最大?
		minv = min(minv,R[i]);  //?存??段的最小? 
	} 
	cout << maxv << endl;
	return 0;
}

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

#include <stdio.h>
static const int MAX = 200000;

int main(){
  int R[MAX],n;

  scanf("%d",&n);
  int i;
  for(i=0;i<n;i++)scanf("%d",&R[i]);

  int maxv=-2000000000;
  int minv=R[0];

  for(i=1;i<n;i++){
    maxv=max(maxv.R[i]-minv);
    minv=min(minv,R[i]);
  }
  printf("%d\n",maxv);

  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:15:10: error: implicit declaration of function 'max' [-Wimplicit-function-declaration]
   15 |     maxv=max(maxv.R[i]-minv);
      |          ^~~
main.c:15:18: error: request for member 'R' in something not a structure or union
   15 |     maxv=max(maxv.R[i]-minv);
      |                  ^
main.c:16:10: error: implicit declaration of function 'min'; did you mean 'main'? [-Wimplicit-function-declaration]
   16 |     minv=min(minv,R[i]);
      |          ^~~
      |          main
Language: C

#include <stdio.h>
#include <math.h>
#define N 10000

int main(){
	int i,j,n,maxv=0,minv;
	int a[N],b[N];

	scanf("%d",&n);
	
	for(i=0;i<n;i++) scanf("%d",&a[i]);
	

for(j=1;j<n;j++){
	for(i=0;i<j-1;i++){
  if(maxv<a[j]-b[i])maxv=a[j]-b[i];
	}
	
	printf("%d\n",maxv);
	
	return 0;
	}

Compiler output:
main.c: In function 'main':
main.c:22:9: error: expected declaration or statement at end of input
   22 |         }
      |         ^
Language: C

#include <stdio.h>

#define N 10000

int main(){
	int i,j,n,maxv=0,minv;
	int a[N],b[N];

	scanf("%d",&n);
	
	for(i=0;i<n;i++) scanf("%d",&a[i]);
	

for(j=1;j<n;j++){
	for(i=0;i<j-1;i++){
  if(maxv<a[j]-b[i])maxv=a[j]-b[i];
	}
	
	printf("%d\n",maxv);
	
	return 0;
	}

Compiler output:
main.c: In function 'main':
main.c:22:9: error: expected declaration or statement at end of input
   22 |         }
      |         ^
Language: C

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

#define MAX 100

int main(){

  int R[MAX], n, i=0;
  int maxv=-2000000000, minv=0;

  scanf("%d",&n);
  for(i=0; i<n; i++){
    scanf("%d",&R[i]);
  }

  minv = R[0];

  for(i=1; i<n; i++){
    maxv = fmax(maxv, R[i]-minv);
    minv = fmin(minv, R[i]);
  }

  printf("%d\n",maxv);

  return 0;
}

Compiler output:
main.c:1:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include<stdio.h>
      |        ^
main.c: In function 'main':
main.c:11:3: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
   11 |   scanf("%d",&n);
      |   ^~~~~
main.c:3:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
    2 | #include<math.h>
  +++ |+#include <stdio.h>
    3 | 
main.c:11:3: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
   11 |   scanf("%d",&n);
      |   ^~~~~
main.c:11:3: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:23:3: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   23 |   printf("%d\n",maxv);
      |   ^~~~~~
main.c:23:3: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:23:3: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:23:3: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

#include<stdio.h>
#define MAX 200000

int main()
{
  int R[MAX];
  int n,i,j;
  int maxv=-2000000000;
  int minv;
  scanf("%d",&n);
  for(i=0;i<n;i++)
    scanf("%d",&R[i]);
  minv=R[0];
  for(j=1;j<n;j++){
      if(maxv<(R[j]-minv))maxv=R[j]-minv;
      if(minv>R[j])minv=R[j];
    }
}
  printf("%d\n",maxv);
  return 0;
}
   

Compiler output:
main.c:19:10: error: expected declaration specifiers or '...' before string constant
   19 |   printf("%d\n",maxv);
      |          ^~~~~~
main.c:19:17: error: unknown type name 'maxv'
   19 |   printf("%d\n",maxv);
      |                 ^~~~
main.c:20:3: error: expected identifier or '(' before 'return'
   20 |   return 0;
      |   ^~~~~~
main.c:21:1: error: expected identifier or '(' before '}' token
   21 | }
      | ^
Language: C

#include <stdio.h>
int main(){
  int i,j,n,maxv=0,minj=0;
  scanf("%d",&n)
    int R[n];
    for(j=0;j<n;j++)
      {
	scanf("%d",&R[i]);
      }
    maxv=R[1]-R[0];
    minj=R[0];
	for(i=1;i<=n-1;i++)
	  {
	    if(maxv<R[j]-minj) maxv=R[j]-minj;
	    if(minj>R[j])minv=R[j];
	  }
      }
printf("%d\n",maxv);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:17: error: expected ';' before 'int'
    4 |   scanf("%d",&n)
      |                 ^
      |                 ;
    5 |     int R[n];
      |     ~~~          
main.c:8:21: error: 'R' undeclared (first use in this function)
    8 |         scanf("%d",&R[i]);
      |                     ^
main.c:8:21: note: each undeclared identifier is reported only once for each function it appears in
main.c:15:26: error: 'minv' undeclared (first use in this function); did you mean 'minj'?
   15 |             if(minj>R[j])minv=R[j];
      |                          ^~~~
      |                          minj
main.c: At top level:
main.c:18:8: error: expected declaration specifiers or '...' before string constant
   18 | printf("%d\n",maxv);
      |        ^~~~~~
main.c:18:15: error: unknown type name 'maxv'
   18 | printf("%d\n",maxv);
      |               ^~~~
main.c:19:1: error: expected identifier or '(' before 'return'
   19 | return 0;
      | ^~~~~~
main.c:20:1: error: expected identifier or '(' before '}' token
   20 | }
      | ^
Language: C

#include <stdio.h>
int main(){
  int i,j,n,maxv=0,minj=0;
  scanf("%d",&n)
    int R[n];
    for(j=0;j<n;j++)
      {
	scanf("%d",&R[j]);
      }
    maxv=R[1]-R[0];
    minj=R[0];
	for(i=1;i<=n-1;i++)
	  {
	    if(maxv<R[i]-minj) maxv=R[i]-minj;
	    if(minj>R[i])minv=R[i];
	  }
      }
printf("%d\n",maxv);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:17: error: expected ';' before 'int'
    4 |   scanf("%d",&n)
      |                 ^
      |                 ;
    5 |     int R[n];
      |     ~~~          
main.c:8:21: error: 'R' undeclared (first use in this function)
    8 |         scanf("%d",&R[j]);
      |                     ^
main.c:8:21: note: each undeclared identifier is reported only once for each function it appears in
main.c:15:26: error: 'minv' undeclared (first use in this function); did you mean 'minj'?
   15 |             if(minj>R[i])minv=R[i];
      |                          ^~~~
      |                          minj
main.c: At top level:
main.c:18:8: error: expected declaration specifiers or '...' before string constant
   18 | printf("%d\n",maxv);
      |        ^~~~~~
main.c:18:15: error: unknown type name 'maxv'
   18 | printf("%d\n",maxv);
      |               ^~~~
main.c:19:1: error: expected identifier or '(' before 'return'
   19 | return 0;
      | ^~~~~~
main.c:20:1: error: expected identifier or '(' before '}' token
   20 | }
      | ^
Language: C

#include <stdio.h>
int main(){
  int i,j,n,maxv=0,minj=0;
  scanf("%d",&n)
    int R[n];
    for(j=0;j<n;j++)
      {
	scanf("%d",&R[j]);
      }
    maxv=R[1]-R[0];
    minj=R[0];
	for(i=1;i<=n-1;i++)
	  {
	    if(maxv<R[i]-minj) maxv=R[i]-minj;
	    if(minj>R[i])minj=R[i];
	  }
      }
printf("%d\n",maxv);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:17: error: expected ';' before 'int'
    4 |   scanf("%d",&n)
      |                 ^
      |                 ;
    5 |     int R[n];
      |     ~~~          
main.c:8:21: error: 'R' undeclared (first use in this function)
    8 |         scanf("%d",&R[j]);
      |                     ^
main.c:8:21: note: each undeclared identifier is reported only once for each function it appears in
main.c: At top level:
main.c:18:8: error: expected declaration specifiers or '...' before string constant
   18 | printf("%d\n",maxv);
      |        ^~~~~~
main.c:18:15: error: unknown type name 'maxv'
   18 | printf("%d\n",maxv);
      |               ^~~~
main.c:19:1: error: expected identifier or '(' before 'return'
   19 | return 0;
      | ^~~~~~
main.c:20:1: error: expected identifier or '(' before '}' token
   20 | }
      | ^
Language: C

#include <stdio.h>
int main(){
  int i,j,n,maxv=0,minj=0;
  scanf("%d",&n)
    int R[n];
  for(j=0;j<n;j++)
    {
      scanf("%d",&R[j]);
    }
  maxv=R[1]-R[0];
  minj=R[0];
  for(i=1;i<n;i++)
    {
      if(maxv<R[i]-minj) maxv=R[i]-minj;
      if(minj>R[i])minj=R[i];
    }
printf("%d\n",maxv);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:17: error: expected ';' before 'int'
    4 |   scanf("%d",&n)
      |                 ^
      |                 ;
    5 |     int R[n];
      |     ~~~          
main.c:8:19: error: 'R' undeclared (first use in this function)
    8 |       scanf("%d",&R[j]);
      |                   ^
main.c:8:19: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>

#define N 200000

int main(){

  int num, i, min, max;
  int n[N];

  scanf("%d", &num);
  for(i=0; i<num; i++){
    scanf("%d", &n[i]);
  }


  min = n[0];
  for(i=0; i<num; i++){
    if(max < n[i]-min) max = n[i]-min;
    if(min > n[i]) min = n[i];
  }

  if(max==0) max = -1;

  printf("%d\n", max);

  return 0;
}
}

Compiler output:
main.c:28:1: error: expected identifier or '(' before '}' token
   28 | }
      | ^
Language: C

#include <stdio.h>

#define N 200000

int main(){

  int num, i, min, max;
  int n[N];

  scanf("%d", &num);
  for(i=0; i<num; i++){
    scanf("%d", &n[i]);
  }


  min = n[0];
  for(i=0; i<num; i++){
    if(max < n[i]-min) max = n[i]-min;
    if(min > n[i]) min = n[i];
  }

  printf("%d\n", max);

  return 0;
}
}

Compiler output:
main.c:26:1: error: expected identifier or '(' before '}' token
   26 | }
      | ^
Language: C

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


/*??´??°??????A???????´???§????????????a??????b?????§????????§????????§???????????????????????????*/
int find_max(int *A,int a,int b){
  int max,i,soeji;
  max=A[a];
  soeji=a;
  for(i=a+1;i<=b;i++){
    if(max<A[i]){
      max=A[i];
      soeji=i;
    }
  }
  return soeji;
}  

int main(){
  int *R,i,n,maxsoeji=-1,ans=0,min=0,hantei=0;
  scanf("%d",&n);
  R=malloc(n*sizeof(int));
  for(i=0;i<n;i++) scanf("%d",&R[i]);
  for(i=0;i<n-1;i++){
    if(R[i]<R[i+1] && (min>R[i] || hantei==0){
      if(hantei==0) hantei=1;
      min=R[i];
      if(i>=maxsoeji){
        maxsoeji=find_max(R,i+1,n-1);
        if(ans<(R[maxsoeji]-min)) ans=R[maxsoeji]-min;
      }
      else ans=R[maxsoeji]-min;
    }
  }
  if(ans==0){
    ans=R[1]-R[0];
    for(i=1;i<n-1;i++){
      if(ans<(R[i+1]-R[i])) ans=R[i+1]-R[i];
    }
  }
  printf("%d\n",ans);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:26:46: error: expected ')' before '{' token
   26 |     if(R[i]<R[i+1] && (min>R[i] || hantei==0){
      |       ~                                      ^
      |                                              )
main.c:35:3: error: expected expression before '}' token
   35 |   }
      |   ^
Language: C

#include <stdio.h>
#include <math.h>
int main(int argc, const char * argv[])

{
    int count,max=0;

    scanf("%d",&count);
    int x[count];
    for(int i=0;i<count;i++){
       scanf("%d",&x[i]);
    }
    for(int i=count-1;i<0;i--){
       for(int j=0;j<count;i++){
          if(max<(x[i]-i[j])){
            max=x[i]-i[j];
          }
       }
    }
    printf("%d\n",max)
    return 0;

}

Compiler output:
main.c: In function 'main':
main.c:15:25: error: subscripted value is neither array nor pointer nor vector
   15 |           if(max<(x[i]-i[j])){
      |                         ^
main.c:16:23: error: subscripted value is neither array nor pointer nor vector
   16 |             max=x[i]-i[j];
      |                       ^
main.c:20:23: error: expected ';' before 'return'
   20 |     printf("%d\n",max)
      |                       ^
      |                       ;
   21 |     return 0;
      |     ~~~~~~
Language: C

#include <stdio.h>
#include <math.h>
int main(int argc, const char * argv[])

{
    int count,max=0;

    scanf("%d",&count);
    int x[count];
    for(int i=0;i<count;i++){
       scanf("%d",&x[i]);
    }
    for(i=count-1;i<0;i--){
       for(int j=0;j<count;i++){
          if(max<(x[i]-i[j])){
            max=x[i]-i[j];
          }
       }
    }
    printf("%d\n",max)
    return 0;

}

Compiler output:
main.c: In function 'main':
main.c:13:9: error: 'i' undeclared (first use in this function)
   13 |     for(i=count-1;i<0;i--){
      |         ^
main.c:13:9: note: each undeclared identifier is reported only once for each function it appears in
main.c:20:23: error: expected ';' before 'return'
   20 |     printf("%d\n",max)
      |                       ^
      |                       ;
   21 |     return 0;
      |     ~~~~~~