c_cpp 检查数字是否为Duck Number

Posted 2021-05-14

//https://www.geeksforgeeks.org/check-whether-number-duck-number-not/
#include<bits/stdc++.h>
using namespace std;

bool func (string s) {
    if (s[0]=='0')
        return 0;
    for (int i=1;i<s.length();i++)
        if (s[i]=='0')
            return 1;
    return 0;
}

int main() {
    string s;
    getline(cin, s);
    if (func(s))
        cout<< "Its a Duck!";
    else
        cout<< "Nope";
}