Submission #557002

#	Time	Username	Problem	Language	Result	Execution time	Memory
557002		Ai7081	Stove (JOI18_stove)	C++17	100 / 100	27 ms	2256 KiB

stove

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

const int N = 1e5 + 5;

priority_queue<int> pq;
int n, k, a[N], ans;

int main() {
    scanf(" %d %d", &n, &k);
    for (int i=0; i<n; i++) scanf(" %d", &a[i]);
    for (int i=0; i<n-1; i++) {
        pq.push(a[i+1] - a[i] - 1);
    }
    ans = a[n-1] - a[0] + 1;
    while (--k) ans -= pq.top(), pq.pop();
    printf("%d", ans);
    return 0;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scanf(" %d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~~
stove.cpp:11:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     for (int i=0; i<n; i++) scanf(" %d", &a[i]);
      |                             ~~~~~^~~~~~~~~~~~~~

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