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Submission #968641

# Submission time Handle Problem Language Result Execution time Memory
968641 2024-04-23T19:04:28 Z VMaksimoski008 Trol (COCI19_trol) C++14
50 / 50
 1 ms 600 KB 
#include <iostream>
using namespace std;
using ll = long long;

int main() {
    int q;
    cin >> q;

    while(q--) {
        ll l, r;
        cin >> l >> r;
        ll ans = (r - l + 1) / 9 * 45;
        for(int i=0; i<(r-l+1)%9; i++)
            ans += ((l + i) % 9 == 0 ? 9 : (l + i) % 9);
        cout << ans << '\n';
    }

    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 0 ms 348 KB Output is correct
3 Correct 1 ms 600 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct