Submission #92101

#	Time	Username	Problem	Language	Result	Execution time	Memory
92101		tjrwodnjs999	격자 보존하기 (GA9_preserve)	C++11	17 / 100	25 ms	3016 KiB

preserve

#include <bits/stdc++.h>
using namespace std;
int n,m,k,arr[100005],a[100005],Max,sum;
int main()
{
    scanf("%d%d%d",&n,&m,&k);
    for(int i=0;i<m;i++) scanf("%d",arr+i);
    for(int i=0;i<m-1;i++) a[i]=arr[i+1]-arr[i]-1;
    sort(a,a+m-1,greater<int>());
    sum=arr[0]-1; for(int i=0;i<(k-1)/2;i++) sum+=a[i]; Max=sum;
    sum=n-arr[m-1]; for(int i=0;i<(k-1)/2;i++) sum+=a[i]; Max=max(Max,sum);
    sum=arr[0]-1; sum+=n-arr[m-1]; for(int i=0;i<(k-2)/2;i++) sum+=a[i]; Max=max(Max,sum);
    printf("%d",Max);
}

Compilation message (stderr)

preserve.cpp: In function 'int main()':
preserve.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d",&n,&m,&k);
     ~~~~~^~~~~~~~~~~~~~~~~~~
preserve.cpp:7:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=0;i<m;i++) scanf("%d",arr+i);
                          ~~~~~^~~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 17 / 17
• Subtask 3: 0 / 22
• Subtask 4: 0 / 17
• Subtask 5: 0 / 35