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Submission #968760

# Submission time Handle Problem Language Result Execution time Memory
968760 2024-04-24T03:49:23 Z vjudge1 Trol (COCI19_trol) C++17
50 / 50
 1 ms 348 KB 
#include<bits/stdc++.h>
using namespace std;

long long f(long long x) {
    long long ret = (x / 9) * 45;
    for (int i = 1; i <= x % 9; i++) ret += i;
    return ret;
}

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    int Q;
    cin >> Q;
    while (Q--) {
        long long l, r;
        cin >> l >> r;
        cout << f(r) - f(l - 1) << endl;
    }
    return 0;
}

Subtask #1
50.0 / 50.0

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