Submission #737272

#	Time	Username	Problem	Language	Result	Execution time	Memory
737272		Amaarsaa	Stove (JOI18_stove)	C++14	100 / 100	58 ms	3136 KiB

stove

#include<bits/stdc++.h>

using namespace std;
int main() {
	long long n, m, ans, x, y, i, j;
	
	cin >> n >> m;
	
	long long a[n + 2];
	ans = 0;
	vector < long long > v;
	for ( i = 1; i <= n; i ++) {
		cin >> a[i];
		if ( i > 1) {
			v.push_back(a[i] - a[i - 1]);
		}
	}
	m= min(n , m);
	ans = a[n] - a[1] + 1;
	sort (v.begin(), v.end());
	for (i = n - 2; i >= n -1- (m - 1); i --) {
		ans -= (v[i] - 1);
	}
	cout << ans << endl;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:5:23: warning: unused variable 'x' [-Wunused-variable]
    5 |  long long n, m, ans, x, y, i, j;
      |                       ^
stove.cpp:5:26: warning: unused variable 'y' [-Wunused-variable]
    5 |  long long n, m, ans, x, y, i, j;
      |                          ^
stove.cpp:5:32: warning: unused variable 'j' [-Wunused-variable]
    5 |  long long n, m, ans, x, y, i, j;
      |                                ^

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