Submission #28259

#	Time	Username	Problem	Language	Result	Execution time	Memory
28259		tlwpdus 팬클럽 회장 (#68)	포도주 시음 (FXCUP2_wine)	C++14	1 / 1	106 ms	4364 KiB

wine

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int n, k;
ll a[300010], ans;

int main(){
	scanf("%d%d", &n, &k);
	for(int i = 1; i <= n; i++){
		scanf("%lld", a + i);
	}
	sort(a + 1, a + n + 1);
	if(k == 1){
		printf("%lld\n", a[n]);
		return 0;
	}
	k = (k + 1) / 2;
	for(int i = 1; i <= k; i++){
		if(i == 1) ans += a[n + 1 - i];
		else ans += a[n + 1 - i] - a[i - 1];
	}
	printf("%lld\n", ans);
}

Compilation message (stderr)

wine.cpp: In function 'int main()':
wine.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &k);
                       ^
wine.cpp:11:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld", a + i);
                       ^

• Subtask 1: 1 / 1