Submission #28460

#	Time	Username	Problem	Language	Result	Execution time	Memory
28460		뚜룹뚜룹뚜룹뚜스~>< (#68)	Wine Tasting (FXCUP2_wine)	C++11	0 / 1	0 ms	3460 KiB

wine

#include <cstdio>
#include <algorithm>
#define ll long long
using namespace std;

int n, m;
ll res, now;
ll arr[300010];

int main(){
	int i;
	scanf("%d %d", &n, &m);
	for(i = 0; i < n; i++) scanf("%lld", &arr[i]);
	sort(arr, arr + n);
	for(i = 0; i < m; i += 2){
		res += arr[n - i / 2 - 1] - now;
		now = arr[i];
	}
	printf("%lld", res);
	return 0;
}

Compilation message (stderr)

wine.cpp: In function 'int main()':
wine.cpp:12:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
                        ^
wine.cpp:13:47: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i = 0; i < n; i++) scanf("%lld", &arr[i]);
                                               ^

• Subtask 1: 0 / 1