Submission #121940

#	Time	Username	Problem	Language	Result	Execution time	Memory
121940		DodgeBallMan	Stove (JOI18_stove)	C++14	100 / 100	24 ms	1916 KiB

stove

#include <bits/stdc++.h>

using namespace std;

int n, k, ans, pv;
vector<int> v;

int main()
{
    scanf("%d %d",&n,&k);
    scanf("%d",&pv);
    for( int i = 2, t ; i <= n ; i++ ) {
        scanf("%d",&t);
        v.emplace_back( t - pv - 1 );
        pv = t;
    }
    sort( v.begin(), v.end() );
    for( int i = 0 ; i < n - k ; i++ ) ans += v[i];
    printf("%d",ans + n);
    return 0;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&n,&k);
     ~~~~~^~~~~~~~~~~~~~~
stove.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&pv);
     ~~~~~^~~~~~~~~~
stove.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&t);
         ~~~~~^~~~~~~~~

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