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Submission #837271

# Submission time Handle Problem Language Result Execution time Memory
837271 2023-08-25T08:54:45 Z LinkedArray Trol (COCI19_trol) C++17
0 / 50
 1 ms 212 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
    long long q, l, r, d, repeating, cif, sum;

    cin >> q;
    while(q--){
        cin >> l >> r;

        sum = 0;
        repeating = (r - l + 1) / 9;

        cif = (l - 1 + 9) % 9 + 1; // Cifra de control al numarului L
        if(cif != 1){ // Cat timp nu este egala cu 1
            sum += 45 - ((cif - 1) * cif / 2); // Adun la suma pana la 1
        }

        sum += 45 * repeating; // Cifrele de control se repeta: 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 .....
        
        cif = (r - 1 + 9) % 9 + 1; // Cifra de control al numarului R
        if(cif != 9){ // Cat timp nu este egala cu 9
            sum += cif * (cif + 1) / 2; // Adunam la suma
        }

        cout << sum << '\n';
    }


    return 0;
}

Compilation message

trol.cpp: In function 'int main()':
trol.cpp:5:24: warning: unused variable 'd' [-Wunused-variable]
    5 |     long long q, l, r, d, repeating, cif, sum;
      |                        ^

Subtask #1
0 / 50.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Incorrect 0 ms 212 KB Output isn't correct
3 Incorrect 1 ms 212 KB Output isn't correct
4 Incorrect 0 ms 212 KB Output isn't correct
5 Incorrect 1 ms 212 KB Output isn't correct