Codeforces 110A Nearly Lucky Number solution in CPP
#include<bits/stdc++.h>
using namespace std;
int main()
{
string a;
int c=0,z=0;
cin>>a;
for(int i=0;i<a.size();i++) {
if(a[i]=='4'||a[i]=='7')//Codeforces 110A Nearly Lucky Number solution in CPP
c++;
}
if(c==4||c==7)
cout<<"YES"<<endl;
else
cout<<"NO"<<endl;
}
Hi exceptional blog! Does running a blog such as this require a great deal
of work? I have very little knowledge of
programming however I had been hoping to start my own blog in the near future.
Anyway, should you have any recommendations or techniques for
new blog owners please share. I understand this is off topic
nevertheless I simply had to ask. Thanks a lot!