oj.uz

답안 #66519

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
66519 2018-08-11T09:31:40 Z KLPP Savrsen (COCI17_savrsen) C++14
120 / 120
 2379 ms 78916 KB 
#include<iostream>
#include<vector>
#include<queue>
#include<algorithm>
#include<stdio.h>

using namespace std;
int abs(int x){
	if(x>0)return x;
	return -x;
}
int main(){
	int a,b;
	scanf("%d %d",&a,&b);
	long long int arr[b];
	for(int i=0;i<b;i++)arr[i]=0;
	for(int i=1;i<=b;i++){
		for(int j=i;j<=b;j+=i){
			arr[j-1]+=i;
		}
	}
	long long int ans=0;
	for(int i=0;i<b;i++){
		if(i>=a-1){arr[i]=abs(arr[i]-2*(i+1));
			ans+=arr[i];
		}
	}printf("%lld\n",ans);

	return 0;
}

Compilation message

savrsen.cpp: In function 'int main()':
savrsen.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&a,&b);
  ~~~~~^~~~~~~~~~~~~~~

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 3 ms 484 KB Output is correct
3 Correct 8 ms 1396 KB Output is correct
4 Correct 2371 ms 78876 KB Output is correct
5 Correct 2352 ms 78912 KB Output is correct
6 Correct 2379 ms 78916 KB Output is correct
7 Correct 2206 ms 78916 KB Output is correct
8 Correct 472 ms 78916 KB Output is correct