Submission #942421

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Source Code Expand

#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <functional>

using namespace std;
#define FOR(i,a,b) for (int i=(a);i<(b);i++)
#define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define REP(i,n) for (int i=0;i<(n);i++)
#define RREP(i,n) for (int i=(n)-1;i>=0;i--)
string s;





int main()
{

	cin >>s;
	int flag = 0;
	REP(i,s.length()){
		if(s[i] == 'C' && flag == 0)
			flag = 1;
		if(s[i] == 'F' && flag == 1)
			flag = 2;
	}

	if(flag == 2)
		cout << "Yes" << endl;
	else
		cout << "No" << endl;




}

Submission Info

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