Submission #28794

#	Time	Username	Problem	Language	Result	Execution time	Memory
28794		kajebiii	Wine Tasting (FXCUP2_wine)	C++14	1 / 1	99 ms	3192 KiB

wine

#include <stdio.h>
#include <bits/stdc++.h>
 
using namespace std;
 
#define SZ(v) ((int)(v).size())
#define ALL(v) (v).begin(),(v).end()
#define one first
#define two second
typedef long long ll;
typedef pair<int, int> pi; typedef pair<ll, int> pli; typedef pair<ll, pi> plp;
typedef tuple<int, int, int> ti; typedef tuple<ll, int, int> tli;
const int INF = 0x3f2f1f0f;
const ll LINF = 1ll * INF * INF;
 
const int MAX_N = 3e5 + 100;
 
int N, K, Nr[MAX_N];
 
int main() {
	cin >> N >> K;
	for(int i=0; i<N; i++) scanf("%d", &Nr[i]);
	sort(Nr, Nr+N);
	int l = 0, r = N-1, last = 0;
	ll ans = 0;
	for(int i=0; i<K; i++) {
		if(i % 2 == 0) {
			ans += Nr[r] - last;
			last = Nr[r]; r--;
		} else {
			ans += 0;
			last = Nr[l]; l++;
		}
	}
	printf("%lld\n", ans);
	return 0;
}

Compilation message (stderr)

wine.cpp: In function 'int main()':
wine.cpp:22:44: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0; i<N; i++) scanf("%d", &Nr[i]);
                                            ^

• Subtask 1: 1 / 1