Submission #1512849

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Source Code Expand

#include <bits/stdc++.h>
#define uint unsigned long long
#define ll long long
#define db double
#define ls rt << 1
#define rs rt << 1 | 1
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define X first
#define Y second
#define pcc pair<char, char>
#define vi vector<int>
#define vl vector<ll>
#define rep(i, x, y) for(int i = x; i <= y; i ++)
#define rrep(i, x, y) for(int i = x; i >= y; i --)
#define eps 1e-9
using namespace std;
const db pi = acos(-1.0);
inline int read()
{
    int x = 0, f = 1; char ch = getchar();
    while (ch < '0' || ch > '9') { if (ch == '-') f = -1; ch = getchar(); }
    while (ch >= '0' && ch <= '9') { x = x * 10 + ch - '0'; ch = getchar(); }
    return x * f;
}

const int N = 100010;
char s[N];
int n;
int main()
{
	scanf("%s",s + 1);
	n = strlen(s + 1);
	int cur = 0 , ans = 0;
	rep(i, 1, n)
		if (cur)
		{
				cur --;
				if (s[i] == 'g') ans ++;
		}
		else
		{
				cur ++;
				if (s[i] == 'p') ans --;
		}

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

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:33:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s + 1);
                   ^

Judge Result