Submission #942430

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Source Code Expand

#include <bits/stdc++.h>

#define INF (1 << 29)
#define rep2(i,m,n) for(int i=(int)(m);i<(int)(n);i++)
#define rep(i,n) rep2(i,0,n)
#define EPS 1e-10

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> P;

int dx[4] = {-1,0,1,0};
int dy[4] = {0,1,0,-1};

bool func(string str){
    int i;
    for(i=0;i<str.size();i++) if(str[i]=='C') break;
    for(;i<str.size();i++) if(str[i]=='F') break;
    return i<str.size();
}

int main()
{
    string str;
    cin >> str;
    if(func(str)) cout << "Yes" << endl;
    else cout << "No" << endl;
    return 0;
}

Submission Info

Judge Result