Submission #967815

#	Time	Username	Problem	Language	Result	Execution time	Memory
967815		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	19 ms	2416 KiB

stove

#include <iostream>
#include <algorithm>
#include <queue>
#include <vector>

using namespace std;
using ll = long long;

int main()
{
    priority_queue<ll> pq;
    int n, k;
    long long pre, curr, ans; scanf("%d %d %lld", &n, &k, &pre); ans = pre;
    if (n == k) return printf("%d", n), 0;
    for (int i = 1;i < n;i++){
        scanf("%lld", &curr);
        pq.push(curr-pre-1);
        pre = curr;
    }
    ans = curr-ans+1;
    while (--k){
        ans -= pq.top();
        pq.pop();
    }
    printf("%lld", ans);
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:13:36: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     long long pre, curr, ans; scanf("%d %d %lld", &n, &k, &pre); ans = pre;
      |                               ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
stove.cpp:16:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         scanf("%lld", &curr);
      |         ~~~~~^~~~~~~~~~~~~~~

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