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답안 #636417

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
636417 2022-08-29T08:41:22 Z berr Savrsen (COCI17_savrsen) C++17
30 / 120
 688 ms 78708 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long


int32_t main()
{
    ios_base::sync_with_stdio(false); cin.tie(0);
    vector<int> a(1e7+1);

    for(int i=0; i<1e7+1; i++)
    {
        a[i]=i;
    }

    for(int i=1; i*i<=(1e7+1); i++)
    {
        for(int l=i+i; l<(1e7+1); l+=i)
        {
            a[l]-=i;
        }
    }


    for(int i=1; i<1e7+1; i++)
    {
        if(a[i]<0) a[i]*=-1;
        a[i]+=a[i-1];
    }
    int x, y; cin>>x>>y;

    cout<<a[y]-a[x-1];

}

Subtask #1
30.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 641 ms 78592 KB Output is correct
2 Correct 672 ms 78708 KB Output is correct
3 Incorrect 667 ms 78588 KB Output isn't correct
4 Incorrect 644 ms 78596 KB Output isn't correct
5 Incorrect 661 ms 78664 KB Output isn't correct
6 Incorrect 645 ms 78540 KB Output isn't correct
7 Incorrect 688 ms 78600 KB Output isn't correct
8 Incorrect 648 ms 78600 KB Output isn't correct