Submission #875627

#	Time	Username	Problem	Language	Result	Execution time	Memory
875627		TahirAliyev	Stove (JOI18_stove)	C++17	100 / 100	38 ms	1684 KiB

stove

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


#define ll long long int
#define pii pair<int, int>
#define oo 1e9

const int MAX = 1e5 + 5;

int n, k;
int arr[MAX];
vector<int> v;

int main(){
    cin >> n >> k;
    for(int i = 1; i <= n; i++){
        cin >> arr[i];
    }
    for(int i = 2; i <= n; i++){
        if(arr[i] - arr[i - 1] - 1 > 0){
            v.push_back(arr[i] - arr[i - 1] - 1);
        }
    }
    if(k >= v.size() + 1){
        cout << n << '\n';
        return 0;
    }
    sort(v.begin(), v.end());
    int ans = n;
    for(int i = 0; i < v.size() + 1 - k; i++){
        ans += v[i];
    }
    cout << ans << '\n';
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:25:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     if(k >= v.size() + 1){
      |        ~~^~~~~~~~~~~~~~~
stove.cpp:31:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     for(int i = 0; i < v.size() + 1 - k; i++){
      |                    ~~^~~~~~~~~~~~~~~~~~

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