Submission #330789

#	Time	Username	Problem	Language	Result	Execution time	Memory
330789		M_W	Stove (JOI18_stove)	C++14	0 / 100	1 ms	384 KiB

stove

#include <bits/stdc++.h>
using namespace std;
int main(){
	int N, K, old, cur;
	int f, l;
	vector<int> v;
	scanf("%d %d %d", &N, &K, &old);
	f = old;
	for(int i = 1; i < N; i++){
		scanf("%d", &cur);
		if(i == N - 1) l = cur;
		v.push_back(cur - old - 1);
		old = cur;
	}
	sort(v.begin(), v.end(), greater<int>());
	int ans = l - f + 1, cnt = 0;
	for(auto x : v){
		if(cnt >= K - 1) break;
		ans -= x;
		cnt++;
	}
	printf("%d", ans);
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:7:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    7 |  scanf("%d %d %d", &N, &K, &old);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
stove.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |   scanf("%d", &cur);
      |   ~~~~~^~~~~~~~~~~~
stove.cpp:16:14: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized]
   16 |  int ans = l - f + 1, cnt = 0;
      |            ~~^~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50