제출 #86448

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
86448		MaHaMBa_25	Savrsen (COCI17_savrsen)	C++14	30 / 120	3057 ms	508 KiB

savrsen

#include <bits/stdc++.h>
#define GLHF ios_base::sync_with_stdio(0); cin.tie(), cout.tie();
#define GGWP return 0;
#define ALTF4 exit(0)
#define GCWS/*Good Contest, Well Solved*/ ALTF4
#define ull unsigned long long
#define ll long long
#define ld long double
#define fxr1(x) for(int I = 0; I < x; ++I)
#define fxr(x) for(int I = 0; I <= x; ++I)
#define F first
#define S second

using namespace std;

ll a, b, ans;

int main()
{
	GLHF
	cin >> a >> b;
	for ( int I = a; I <= b; ++I )
	{
		int cnt = I;
		for ( int J = 2; J <= I; ++J )
			if ( I % J == 0 )
				cnt -= I/J;
		ans += abs(cnt);
	}
	cout << ans << endl;
	GGWP
}

//clang++ -v -std=c++11 finish fishing the fish.people

• Subtask 1: 30 / 120