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답안 #302850

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
302850 2020-09-19T09:30:50 Z iliccmarko Savrsen (COCI17_savrsen) C++14
120 / 120
 1339 ms 39648 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl "\n"

using namespace std;
int a, b;
int arr[10000005];


int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin>>a>>b;
    for(int i = 1;i<=10000000;i++)
    {
        for(int j = 2*i;j<=10000000;j+=i)
            arr[j]-=i;
    }
    
    ll ans = 0;
    for(int i = a;i<=b;i++)
    {
        ans+=abs(arr[i]+i);
    }
    
    cout<<ans;
    



    return 0;
}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1293 ms 39544 KB Output is correct
2 Correct 1284 ms 39544 KB Output is correct
3 Correct 1278 ms 39516 KB Output is correct
4 Correct 1298 ms 39520 KB Output is correct
5 Correct 1300 ms 39648 KB Output is correct
6 Correct 1309 ms 39544 KB Output is correct
7 Correct 1339 ms 39416 KB Output is correct
8 Correct 1298 ms 39516 KB Output is correct