Submission #1007320

#TimeUsernameProblemLanguageResultExecution timeMemory
1007320vjudge1Trol (COCI19_trol)C++17
20 / 50
1080 ms348 KiB
#include <bits/stdc++.h>
#define ll long long
using namespace std;

int main(){
  int q; cin >> q;
  while(q--){
    int l, r; cin >> l >> r;
    ll ans = 0;
    for(int i = l; i <= r; i++){
      int num = i;
      while(num >= 10){
        int temp = 0;
        while(num > 0){
          temp += num % 10;
          num /= 10;
        };
        num = temp;
      };
      ans += num;
    };
    cout << ans << endl;
  }
}
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