Submission #74345

#	Time	Username	Problem	Language	Result	Execution time	Memory
74345		khsoo01	Wine Tasting (FXCUP2_wine)	C++11	1 / 1	93 ms	31200 KiB

wine

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n, k, a[300005];
 
int main()
{
	scanf("%lld%lld",&n,&k);
	if(k%2 == 0) k--;
	for(ll i=1;i<=n;i++) {
		scanf("%lld",&a[i]);
	}
	sort(a+1, a+1+n);
	ll ans = 0;
	for(ll i=1;i<=(k+1)/2;i++) {
		ans += a[n-i+1];
	}
	for(ll i=1;i<=k/2;i++) {
		ans -= a[i];
	}
	printf("%lld\n",ans);
}

Compilation message (stderr)

wine.cpp: In function 'int main()':
wine.cpp:8:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&n,&k);
  ~~~~~^~~~~~~~~~~~~~~~~~
wine.cpp:11:8: 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