Submission #1695318

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Source Code Expand

#include<cstdio>
using namespace std;
int n,ans;
int main(void){
	register int i,mx=-1,x,now,p;
	scanf("%d",&n);
	for(i=1;i<=n;++i){
		scanf("%d",&x);
		if(mx==-1)mx=x,p=1;
		else if(p==1){
			if(x>mx)mx=x,now=1,p=0;
			else if(x<mx)mx=x,now=0,p=0;
		}else{
			if(now==1){
				if(x>=mx)mx=x;
				else p=1,++ans,mx=x; 
			}
			else{
				if(x<=mx)mx=x;
				else p=1,++ans,mx=x;
			}
		}
	}
	printf("%d",ans+1);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:6:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
./Main.cpp:8:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&x);
                 ^

Judge Result