oj.uz

답안 #150994

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
150994 2019-09-01T14:08:57 Z SeekingOblivion Savrsen (COCI17_savrsen) C++14
120 / 120
 1631 ms 39544 KB 
//#include<fstream>
#include<queue>
#include<algorithm>
#include<iostream>
#define fin cin
#define fout cout
using namespace std;
//ifstream fin("date.in");
//ofstream fout("date.out");
int a,b,i,f[10000001],j;
long long sol;
int main()
{
    fin>>a>>b;
    for(i=1;i<=b;i++)
    {
        f[i]-=i;
        for(j=i*2;j<=b;j+=i)
            f[j]+=i;
    }
    for(i=a;i<=b;i++)
        if(f[i]>0) sol+=f[i]; else sol-=f[i];
    fout<<sol;
    return 0;
}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 5 ms 760 KB Output is correct
4 Correct 1631 ms 39496 KB Output is correct
5 Correct 1519 ms 39504 KB Output is correct
6 Correct 1593 ms 39544 KB Output is correct
7 Correct 1367 ms 36424 KB Output is correct
8 Correct 144 ms 10240 KB Output is correct