Submission #28346

#	Time	Username	Problem	Language	Result	Execution time	Memory
28346		:thinking_face: (#68)	Wine Tasting (FXCUP2_wine)	C++11	1 / 1	109 ms	3192 KiB

wine

#include<bits/stdc++.h>

using namespace std;

int arr[300000];
long long ret = 0;

int main()
{
	int n, k;
	scanf("%d %d", &n, &k);
	for(int i = 0; i < n; i++)
		scanf("%d", arr+i);
	sort(arr, arr+n);

	int l = 0, r = n-1;
	bool right = true;

	long long ret = 0;
	int prev = 0;
	while(k--)
	{
		if(right)
			ret += arr[r--] - prev;
		else
			prev = arr[l++];
		right = !right;
	}
	printf("%lld\n", ret);
	return 0;
}

Compilation message (stderr)

wine.cpp: In function 'int main()':
wine.cpp:11:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &k);
                        ^
wine.cpp:13:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", arr+i);
                     ^

• Subtask 1: 1 / 1