oj.uz

답안 #884416

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
884416 2023-12-07T10:13:16 Z Ariadna Savrsen (COCI17_savrsen) C++14
60 / 120
 3000 ms 600 KB 
#include <bits/stdc++.h>
#define ll long long int

using namespace std;

ll sum_div(int n) {
    if (n == 1) return 0;
    ll sum = 1;
    for (int i = 2; i * i <= n; ++i) {
        if (i * i == n) sum += i;
        else if (n % i == 0) {
            sum += i + n / i;
        }
    }
    return sum;
}

int main()
{
    int a, b;
    cin >> a >> b;
    ll ans = 0;
    for (int i = a; i <= b; ++i) {
        ans += abs(i - sum_div(i));
    }
    cout << ans << '\n';

    return 0;
}

Subtask #1
60.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 124 ms 412 KB Output is correct
4 Correct 20 ms 344 KB Output is correct
5 Execution timed out 3052 ms 348 KB Time limit exceeded
6 Execution timed out 3028 ms 600 KB Time limit exceeded
7 Execution timed out 3065 ms 344 KB Time limit exceeded
8 Execution timed out 3039 ms 348 KB Time limit exceeded