Submission #1229046

#	Time	Username	Problem	Language	Result	Execution time	Memory
1229046		xxducdat	Stove (JOI18_stove)	C++20	0 / 100	1 ms	320 KiB

stove

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

int main(){
	if(fopen("STOVE.inp", "r")){
		freopen("STOVE.inp", "r", stdin);
		freopen("STOVE.out", "w", stdout);
	}
	int n,k;
	cin>>n>>k;
	vector<int> t(n);
	vector<int> ti;
	for(int i=1;i<=n;i++){
		cin>>t[i];
	}
	for(int i=0;i<n-1;i++){
		ti.push_back(t[i+1]-t[i]-1);
	}
	int T=n;
	sort(ti.begin(),ti.end());
	for(int i=1;i<=n-k;i++){
		T+=ti[i];
	}
	cout<<T;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:6:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |                 freopen("STOVE.inp", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
stove.cpp:7:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |                 freopen("STOVE.out", "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

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