oj.uz

답안 #95864

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
95864 2019-02-03T08:44:48 Z Rouge_Hugo Savrsen (COCI17_savrsen) C++14
120 / 120
 1880 ms 78712 KB 
#include <bits/stdc++.h>
using namespace std;
long long  s[10000007];

int main()
{
	int a,b;cin>>a>>b;
	for(int i=1;i<=b;i++)
	{
		for(int j=i+i;j<=b;j+=i)
		{
			s[j]-=i;
		}
	}
	long long  sum=0;
for(int i=a;i<=b;i++)
{
sum+=abs(i+s[i]);	
}
cout<<sum;
 return 0;

}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 5 ms 1144 KB Output is correct
4 Correct 1794 ms 78712 KB Output is correct
5 Correct 1880 ms 78668 KB Output is correct
6 Correct 1782 ms 78664 KB Output is correct
7 Correct 1643 ms 72440 KB Output is correct
8 Correct 195 ms 20216 KB Output is correct