Submission #23823583

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
const int N=100005;
int n;
char s[N];
int main()
{
	scanf("%d%s",&n,s+1);
	if(s[1]!=s[n])
	{
		puts("1");
		return 0;
	}
	for(int i=2;i<n;i++)
	{
		if(s[i]!=s[1]&&s[i+1]!=s[1])
		{
			puts("2");
			return 0;
		}
	}
	puts("-1");
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
    8 |  scanf("%d%s",&n,s+1);
      |  ~~~~~^~~~~~~~~~~~~~~

Judge Result