Submission #731107

#	Time	Username	Problem	Language	Result	Execution time	Memory
731107		sleepntsheep	Stove (JOI18_stove)	C++17	100 / 100	30 ms	1700 KiB

stove

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

int main()
{
    int n, k; long long z = 0;
    scanf("%d%d", &n, &k);
    auto t = new int[n];
    for (int i = 0; i < n; i++) scanf("%d", t+i);
    sort(t, t+n); z = t[n-1] - t[0] + 1;
    for (int i = 1; i < n; i++) t[i-1] = t[i] - t[i-1];
    sort(t, t+n-1, greater<int>());
    for (int i = 0; i < k - 1; i++) z -= t[i] - 1;
    printf("%lld", z);
    delete []t;
    return 0;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf("%d%d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~
stove.cpp:9:38: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     for (int i = 0; i < n; i++) scanf("%d", t+i);
      |                                 ~~~~~^~~~~~~~~~~

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