Submission #716644

#	Time	Username	Problem	Language	Result	Execution time	Memory
716644		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	48 ms	2300 KiB

stove

#include <bits/stdc++.h>
 
using namespace std;
 
#define ll long long int
#define oo 1e15 + 9
#define pii pair<ll, int>

const int MAX = 1e5 + 5;
int arr[MAX];

int main(){
    int n, k; cin >> n >> k;
    vector<int> dif;
    for(int i = 0; i < n; i++){
        cin >> arr[i];
    }
    for(int i = 0; i < n - 1; i++){
        dif.push_back(arr[i + 1] - arr[i] - 1);
    }
    sort(dif.begin(), dif.end());
    int ans = n;
    for (int i = 0; i < (dif.size() - k + 1); i++)
    {
        ans += dif[i];
    }
    cout << ans;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:23:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for (int i = 0; i < (dif.size() - k + 1); i++)
      |                     ~~^~~~~~~~~~~~~~~~~~~~~~

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