Submission #72183782

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    string s;
    cin >> s;
    
    int cnt = 0;
    
    bool ok = false;
    
    while(cnt <= 10){
        int sum = 0;
        for(int i = 0; i < s.size(); i++) {
            int temp = s[i] - '0';
            sum += temp*temp;
        }
        
        if(sum == 1) {
            ok = true;
            break;
        }
        s = to_string(sum);
        cnt++;
    }
    
    cout << (ok ? "Yes\n" : "No\n");
}

Submission Info

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