Submission #1266697

#	Time	Username	Problem	Language	Result	Execution time	Memory
1266697		herominhsteve	Stove (JOI18_stove)	C++20	100 / 100	14 ms	1096 KiB

stove

#include <bits/stdc++.h>

int main(){
  int n,K;
  int a[100'001],b[100'001];
  scanf("%d %d",&n,&K);
  for (int i=0;i<n;i++){
    int x;
    scanf("%d",&x);
    a[i] = x;
  }
  for (int i=1;i<n;i++){
    b[i-1] = a[i] - (a[i-1]+1);
  }
  std::sort(b,b+n-1);
  int res = n;
  for (int i=0;i<n-K;i++){
    res += b[i];
  }
  printf("%d",res);
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:6:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |   scanf("%d %d",&n,&K);
      |   ~~~~~^~~~~~~~~~~~~~~
stove.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d",&x);
      |     ~~~~~^~~~~~~~~

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