Submission #117634

#	Time	Username	Problem	Language	Result	Execution time	Memory
117634		wilwxk	Stove (JOI18_stove)	C++14	100 / 100	31 ms	2228 KiB

stove

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

const int MAXN=1e5+5;
priority_queue<int> pq;
int v[MAXN];
int n, x;
int resp;

int main() {
	scanf("%d %d", &n, &x);
	for(int i=1; i<=n; i++) {
		scanf("%d", &v[i]);
		if(i!=1) pq.push(v[i]-v[i-1]-1);
	}

	resp=v[n]-v[1]+1; x--;
	while(x--) {
		if(pq.size()) {
			resp-=pq.top();
			pq.pop();
		}
	}

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

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &x);
  ~~~~~^~~~~~~~~~~~~~~~~
stove.cpp:13:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &v[i]);
   ~~~~~^~~~~~~~~~~~~

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