Submission #134172

#	Time	Username	Problem	Language	Result	Execution time	Memory
134172		Boxworld	Stove (JOI18_stove)	C++14	100 / 100	28 ms	1784 KiB

stove

#include <bits/stdc++.h>
using namespace std;
int d[100100];
int main(){
	int n,k,l,x,ans=0,tmp=0;
	scanf("%d%d%d",&n,&k,&l);
	for (int i=0;i<n-1;i++){
		scanf("%d",&x);
		d[tmp]=x-l-1;
		if (d[tmp]!=0)tmp++;
		l=x;
	}
	sort(d,d+tmp);
	for (int i=0;i<max(0,tmp-k+1);i++)ans+=d[i];
	printf("%d\n",n+ans);
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:6:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d",&n,&k,&l);
  ~~~~~^~~~~~~~~~~~~~~~~~~
stove.cpp:8:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&x);
   ~~~~~^~~~~~~~~

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