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답안 #97091

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
97091 2019-02-13T19:49:37 Z karlopuh Savrsen (COCI17_savrsen) C++14
120 / 120
 2842 ms 78712 KB 
#include <bits/stdc++.h>
using namespace std;

int a,b;
long long int sum[10000008];
long long int ans;

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

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 7 ms 1152 KB Output is correct
4 Correct 2842 ms 78680 KB Output is correct
5 Correct 2776 ms 78712 KB Output is correct
6 Correct 2820 ms 78584 KB Output is correct
7 Correct 2548 ms 72480 KB Output is correct
8 Correct 391 ms 20316 KB Output is correct