Submission #516300

#	Time	Username	Problem	Language	Result	Execution time	Memory
516300		Jomnoi	Stove (JOI18_stove)	C++17	100 / 100	30 ms	2352 KiB

stove

#include <bits/stdc++.h>
#define DEBUG 0
using namespace std;

const int N = 1e5 + 10;

int t[N];

int main() {
    int n, k;
    scanf(" %d %d", &n, &k);
    for(int i = 1; i <= n; i++) {
        scanf(" %d", &t[i]);
    }

    int ans = t[n] - t[1] + 1;
    priority_queue <int> pq;
    for(int i = 2; i <= n; i++) {
        pq.emplace(t[i] - t[i - 1] - 1);
    }

    while(!pq.empty() and --k) {
        ans -= pq.top();
        pq.pop();
    }
    cout << ans;
    return 0;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf(" %d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~~
stove.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         scanf(" %d", &t[i]);
      |         ~~~~~^~~~~~~~~~~~~~

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