Submission #1344468

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Source Code Expand

#include <stdio.h>
#define FOR(i,a,n) for(i=a;i<n;i++)
typedef struct{
	int top;
	char str[101];
}Stack;
Stack s;
void push(char a){
	s.str[s.top++]=a;
	return;
}
char pop(){
	return s.str[--s.top];
}

int main(void)
{
	int n,i,t=0;
	s.top=0;
	char str[101],c;
	scanf("%d",&n);
	scanf("%s",str);
	FOR(i,0,n){
		if(str[i]=='(') push(str[i]);
		else{
			if(s.top==0) t++;
			else pop();
		}
	}
	FOR(i,0,t) putchar('(');
	printf("%s",str);
	FOR(i,0,s.top) putchar(')');
	puts("");
	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:21:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ^
./Main.c:22:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",str);
  ^

Judge Result