Submission #112344

#	Time	Username	Problem	Language	Result	Execution time	Memory
112344		luciocf	Stove (JOI18_stove)	C++14	100 / 100	23 ms	2048 KiB

stove

#include <bits/stdc++.h>

using namespace std;

const int maxn = 1e5+10;

int a[maxn], d[maxn];

int main(void)
{
	int n, k;
	scanf("%d %d", &n, &k);

	for (int i = 1; i <= n; i++)
		scanf("%d", &a[i]);

	for (int i = 2; i <= n; i++)
		d[i-1] = a[i]-a[i-1];

	sort(d+1, d+n);

	int ans = k;
	for (int i = 1; i <= n-k; i++)
		ans += d[i];

	printf("%d\n", ans);
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &k);
  ~~~~~^~~~~~~~~~~~~~~~~
stove.cpp:15:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
   ~~~~~^~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50