Submission #64117

#	Time	Username	Problem	Language	Result	Execution time	Memory
64117		keko37	Stove (JOI18_stove)	C++14	100 / 100	37 ms	1908 KiB

stove

#include<iostream>
#include<algorithm>

using namespace std;

const int MAXN = 100005;

long long n, k, sol;
int l[MAXN], d[MAXN];

int main () {
	cin >> n >> k;
	for (int i=0; i<n; i++) {
		scanf("%d", &l[i]);
		if (i) d[i] = l[i] - l[i-1] - 1;
		sol += d[i];
	}
	sort(d+1, d+n);
	for (int i=0; i<k-1; i++) {
		sol -= d[n-1 - i];
	}
	cout << sol + n;
	return 0;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:14:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &l[i]);
   ~~~~~^~~~~~~~~~~~~

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