oj.uz

답안 #636423

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
636423 2022-08-29T08:49:17 Z berr Savrsen (COCI17_savrsen) C++17
120 / 120
 1236 ms 78548 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long


int32_t main()
{
    ios_base::sync_with_stdio(false); cin.tie(0);
    int x, y; cin>>x>>y;
    vector<int> a(y+1);

    for(int i=0; i<=y; i++)
    {
        a[i]=i;
    }

    for(int i=1; i<=y; i++)
    {
        for(int l=i+i; l<=(y); l+=i)
        {
            if(l!=i)
            a[l]-=i;
        }
    }
    int ans=0;
    for(int i=x; i<=y; i++)
    {
        if(a[i]<0) a[i]*=-1;
        ans+=a[i];
    }



    cout<<ans;

}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 1108 KB Output is correct
4 Correct 1046 ms 78476 KB Output is correct
5 Correct 1054 ms 78548 KB Output is correct
6 Correct 1236 ms 78540 KB Output is correct
7 Correct 1030 ms 72404 KB Output is correct
8 Correct 224 ms 20180 KB Output is correct