Submission #1693980

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
const int N=1e5+10;
int n,a[N];
int main()
{
	scanf("%d",&n);
	for (int i=1;i<=n;i++) scanf("%d",&a[i]);
	int ans=1;
	for (int i=2,pre=0;i<n;i++)
	if ((a[i-1]<a[i]&&a[i]>a[i+1])||(a[i-1]>a[i]&&a[i]<a[i+1]))
		if (i!=pre) ans++,pre=i+1;
	printf("%d\n",ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:7:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
./Main.cpp:8:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for (int i=1;i<=n;i++) scanf("%d",&a[i]);
                                          ^

Judge Result