Submission #52614

#	Time	Username	Problem	Language	Result	Execution time	Memory
52614		snat123	Stove (JOI18_stove)	C++14	100 / 100	30 ms	11024 KiB

stove

#include<bits/stdc++.h>
 
using namespace std;
 
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n, k, res=0, cnt;
    cin >> n >> k;
    if(k==n){
    	cout << n; 
    	return 0;
    }
    res=n;
    cnt=n;
    long long a[n];
    for(int i=0; i<n; i++) cin >> a[i];
    vector<int>v;
    for(int i=1; i<n; i++){
    	v.push_back(a[i]-a[i-1]-1);
    }
    sort(v.begin(), v.end());
    for(int i=0; i<v.size(); i++){
    	res+=v[i];
    	cnt--;
    	if(cnt==k) break;
    }
    cout << res;
    return 0;
} 

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:23:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0; i<v.size(); i++){
                  ~^~~~~~~~~

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