oj.uz

답안 #884448

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
884448 2023-12-07T11:27:44 Z ElenaBM Savrsen (COCI17_savrsen) C++17
120 / 120
 766 ms 78936 KB 
#include <bits/stdc++.h>
#define int long long 

using namespace std;

signed main()
{
    int a, b;
    cin>> a >> b;
    int ans = 0;
    vector<int>sdiv(b+1, 1);
    sdiv[1] = 0;
    for (int i = 2; i <= b; ++i){
        for (int j = 2*i; j <= b; j += i){
            sdiv[j] += i;
        }
    }
    for (int i = a; i <= b; ++i) ans += abs(i- sdiv[i]);
    cout<< ans << '\n';
    return 0;
}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 2 ms 1116 KB Output is correct
4 Correct 755 ms 78700 KB Output is correct
5 Correct 756 ms 78936 KB Output is correct
6 Correct 766 ms 78704 KB Output is correct
7 Correct 678 ms 72540 KB Output is correct
8 Correct 112 ms 20312 KB Output is correct