제출 #542048

#제출 시각아이디문제언어결과실행 시간메모리
542048lunchboxStove (JOI18_stove)C++17
100 / 100
20 ms1696 KiB
#include <bits/stdc++.h>
using namespace std;

int main() {
	int n, k, ans;
	scanf("%d%d", &n, &k), k--;
	vector<int> a(n);
	for (int &x : a)
		scanf("%d", &x);
	ans = a[n - 1] - a[0] + 1;
	for (int i = 0; i + 1 < n; i++)
		a[i] = a[i + 1] - a[i] - 1;
	a.pop_back();
	sort(a.rbegin(), a.rend());
	for (int i = 0; i < k; i++)
		ans -= a[i];
	printf("%d\n", ans);
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

stove.cpp: In function 'int main()':
stove.cpp:6:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |  scanf("%d%d", &n, &k), k--;
      |  ~~~~~^~~~~~~~~~~~~~~~
stove.cpp:9:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |   scanf("%d", &x);
      |   ~~~~~^~~~~~~~~~
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