Submission #7460204

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Source Code Expand

#include<bits/stdc++.h>
#define rep(i,n) for(int i=0; i<(n); i++)
using namespace std;
string s;
long long ans, t;
int main(){
	cin >> s;
	s.push_back('0');
	rep(i,s.size()){
		if(s.substr(i,2) == "25"){
			i++;
			t++;
		}else{
			ans += t*(t+1)/2;
			t = 0;
		}
	}
	cout << ans << '\n';
}

Submission Info

Judge Result