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Submission #92121

# Submission time Handle Problem Language Result Execution time Memory
92121 2019-01-01T15:14:32 Z tjrwodnjs999 격자 보존하기 (GA9_preserve) C++11
17 / 100
 24 ms 2808 KB 
#include <bits/stdc++.h>
using namespace std;
int n,m,k,arr[100005],a[100005],b[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+100005,greater<int>()); b[0]=a[0];
    for(int i=1;i<m-1;i++) b[i]+=b[i-1];
    if(k==1) Max=max(arr[0]-1,n-arr[m-1]);
    else{
        Max=max(b[k/2-1],arr[0]-1+n-arr[m-1]);
        if(k>=3) Max=max(Max,b[(k-1)/2-1]+max(arr[0]-1,n-arr[m-1]));
        if(k>=4) Max=max(Max,b[(k-2)/2-1]+arr[0]-1+n-arr[m-1]);
    }
    printf("%d",Max);
}

Compilation message

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 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 760 KB Output is correct
2 Correct 3 ms 760 KB Output is correct
3 Correct 3 ms 760 KB Output is correct
4 Correct 3 ms 764 KB Output is correct
5 Incorrect 3 ms 764 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 760 KB Output is correct
2 Correct 3 ms 760 KB Output is correct
3 Correct 3 ms 760 KB Output is correct
4 Correct 3 ms 760 KB Output is correct
5 Correct 3 ms 760 KB Output is correct
6 Correct 3 ms 760 KB Output is correct
7 Correct 3 ms 760 KB Output is correct
8 Correct 3 ms 760 KB Output is correct
9 Correct 3 ms 760 KB Output is correct
10 Correct 3 ms 760 KB Output is correct
11 Correct 3 ms 760 KB Output is correct
12 Correct 3 ms 760 KB Output is correct
13 Correct 3 ms 764 KB Output is correct
14 Correct 3 ms 760 KB Output is correct
15 Correct 3 ms 760 KB Output is correct
16 Correct 3 ms 760 KB Output is correct
17 Correct 3 ms 760 KB Output is correct
18 Correct 3 ms 760 KB Output is correct
19 Correct 3 ms 760 KB Output is correct
20 Correct 3 ms 760 KB Output is correct
21 Correct 3 ms 760 KB Output is correct
22 Correct 3 ms 760 KB Output is correct
23 Correct 3 ms 760 KB Output is correct

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 760 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 23 ms 1528 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Runtime error 24 ms 2808 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -