Submission #72169406

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Source Code Expand

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using mint = modint998244353;
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using vll = vector<ll>;
using vvll = vector<vll>;
using vvvll = vector<vvll>;
using vmi = vector<mint>;
using vvmi = vector<vmi>;
using vvvmi = vector<vvmi>;
#define all(a) (a).begin(), (a).end()
#define rep2(i, m, n) for (int i = (m); i < (n); ++i)
#define rep(i, n) rep2(i, 0, n)
#define drep2(i, m, n) for (int i = (m)-1; i >= (n); --i)
#define drep(i, n) drep2(i, n, 0)

void solve(){
    
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n; cin >> n;
    set<int> st; st.insert(n);
    while(true){
        string s = to_string(n);
        int c = 0;
        rep(i, s.length()){
            int d = s[i] - '0';
            c += d*d;
        }
        if(c == 1){
            cout << "Yes" << endl;
            return 0;
        }
        if(st.count(c)){
            cout << "No" << endl;
            return 0;
        }
        n = c;
        st.insert(c);
    }
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function 'int main()':
./Main.cpp:17:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 | #define rep2(i, m, n) for (int i = (m); i < (n); ++i)
      |                                           ^
./Main.cpp:18:19: note: in expansion of macro 'rep2'
   18 | #define rep(i, n) rep2(i, 0, n)
      |                   ^~~~
./Main.cpp:34:9: note: in expansion of macro 'rep'
   34 |         rep(i, s.length()){
      |         ^~~

Judge Result