oj.uz

답안 #1039371

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1039371 2024-07-30T19:18:44 Z 7again Savrsen (COCI17_savrsen) C++17
120 / 120
 679 ms 78684 KB 
#include <bits/stdc++.h>
#define int long long
#define FAST ios::sync_with_stdio(0);cout.tie(0);cin.tie(0)

using namespace std ;

void slv()
{
    int l , r ;
    cin >> l >> r ;

    vector <int> sum(1e7+1 , 0) ;
    for(int i = 2 ; i <= 1e7 ; i++)
    {
        for(int j = 2*i ; j <= 1e7 ; j += i)
            sum[j] += i ;
    }


    sum[1] = 1 ;
    for(int i = 2 ; i <= 1e7 ; i++)
    {
        sum[i] = abs(i - (sum[i] + 1)) ;
        sum[i] += sum[i - 1] ;
    }

    cout << sum[r] - sum[l - 1] ;
}
main()
{

    FAST ;

    slv() ;
}

Compilation message

savrsen.cpp:29:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   29 | main()
      | ^~~~

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 655 ms 78684 KB Output is correct
2 Correct 673 ms 78676 KB Output is correct
3 Correct 668 ms 78672 KB Output is correct
4 Correct 679 ms 78672 KB Output is correct
5 Correct 672 ms 78684 KB Output is correct
6 Correct 665 ms 78520 KB Output is correct
7 Correct 625 ms 78672 KB Output is correct
8 Correct 632 ms 78580 KB Output is correct