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Submission #974603

# Submission time Handle Problem Language Result Execution time Memory
974603 2024-05-03T14:04:54 Z vjudge1 Trol (COCI19_trol) C++17
50 / 50
 1 ms 348 KB 
#include<bits/stdc++.h>
using namespace std;
#define ull unsigned long long

int main(){
    int q; cin >> q;
    while(q--){
        ull l, r; cin >> l >> r;
        l--;
        cout << (((r/9)*45) + (((r%9) * ((r%9)+1))/2)) - (((l / 9) * 45) + (((l % 9) * ((l % 9) + 1))/2)) << endl;
    }
}

Subtask #1
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct