Submission #348305

#	Time	Username	Problem	Language	Result	Execution time	Memory
348305		Halogen	Stove (JOI18_stove)	C++14	100 / 100	31 ms	3172 KiB

stove

#include <bits/stdc++.h>

using namespace std;

#define int long long

main() {
    int N, K; scanf("%lld %lld", &N, &K);
    int lst[1000005]; lst[0] = 0;
    for (int i = 1; i <= N; i++) scanf("%lld", &lst[i]);
    priority_queue<int> pq;

    for (int i = 1; i <= N; i++) {
        pq.push(lst[i + 1] - lst[i] - 1);
    }

    int ans = lst[N] - lst[1] + 1;

    for (int i = 1; i < K; i++) {
        // printf("%lld\n", ans);
        ans -= pq.top(); pq.pop();
    }
    
    printf("%lld", ans);
}

Compilation message (stderr)

stove.cpp:7:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    7 | main() {
      |      ^
stove.cpp: In function 'int main()':
stove.cpp:8:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    8 |     int N, K; scanf("%lld %lld", &N, &K);
      |               ~~~~~^~~~~~~~~~~~~~~~~~~~~
stove.cpp:10:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |     for (int i = 1; i <= N; i++) scanf("%lld", &lst[i]);
      |                                  ~~~~~^~~~~~~~~~~~~~~~~

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