Submission #66519

#	Time	Username	Problem	Language	Result	Execution time	Memory
66519		KLPP	Savrsen (COCI17_savrsen)	C++14	120 / 120	2379 ms	78916 KiB

savrsen

#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 (stderr)

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 / 120