Submission #390061

#	Time	Username	Problem	Language	Result	Execution time	Memory
390061		ioi	Stove (JOI18_stove)	C++14	100 / 100	54 ms	1808 KiB

stove

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

int main()
{
    int n , k ;
    cin >> n >> k ;

    k -- ;


    vector<int> v ;
    int past , f ;

    for(int i = 0 ; i < n; i ++){
        int a ;
        cin >> a ;
        if(i == 0)f = a ;

        if(i)v.push_back(a - past - 1);
        past = a ;

    }
    int ans = past + 1 - f ;


    sort(v.rbegin() , v.rend());

    for(int i = 0 ; i < k ; i ++)
        ans -= v[i];

    cout << ans ;

}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:24:20: warning: 'past' may be used uninitialized in this function [-Wmaybe-uninitialized]
   24 |     int ans = past + 1 - f ;
      |               ~~~~~^~~
stove.cpp:24:9: warning: 'f' may be used uninitialized in this function [-Wmaybe-uninitialized]
   24 |     int ans = past + 1 - f ;
      |         ^~~

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