Submission #1868168


Source Code Expand

#include<bits/stdc++.h>

using namespace std;

inline int read()
{
    int x=0;char ch=getchar();
    while(ch<'0' || '9'<ch)ch=getchar();
    while('0'<=ch && ch<='9')x=x*10+(ch^48),ch=getchar();
    return x;
}

const int N=1e5+9;

int n,ans;
int a[N];

int main()
{
    if(fopen("vj.in","r"))
    {
        freopen("vj.in","r",stdin);
        freopen("vj.out","w",stdout);
    }

	n=read();
	for(int i=1;i<=n;i++)
		a[i]=read();

	for(int i=1,j,k;i<=n;i=j+1)
	{
		k=i;
		while(a[k]<=a[k+1])k++;
		j=k;
		k=i;
		while(a[k]>=a[k+1])k++;
		j=max(j,k);
		ans++;
	}

	printf("%d\n",ans);
    return 0;
}

                    

Submission Info

Submission Time
Task A - Sorted Arrays
User Aldrich
Language C++14 (GCC 5.4.1)
Score 300
Code Size 669 Byte
Status AC
Exec Time 9 ms
Memory 640 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:22:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
         freopen("vj.in","r",stdin);
                                   ^
./Main.cpp:23:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
         freopen("vj.out","w",stdout);
                                     ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 17
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt
Case Name Status Exec Time Memory
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
sample_03.txt AC 1 ms 256 KB
subtask_1_01.txt AC 6 ms 512 KB
subtask_1_02.txt AC 5 ms 384 KB
subtask_1_03.txt AC 4 ms 384 KB
subtask_1_04.txt AC 9 ms 640 KB
subtask_1_05.txt AC 9 ms 640 KB
subtask_1_06.txt AC 9 ms 640 KB
subtask_1_07.txt AC 9 ms 640 KB
subtask_1_08.txt AC 9 ms 640 KB
subtask_1_09.txt AC 9 ms 640 KB
subtask_1_10.txt AC 1 ms 256 KB
subtask_1_11.txt AC 1 ms 256 KB