Submission #1221350


Source Code Expand

#include<cstdio>
#include<algorithm>
#define rep(i,x,y) for(int i=(x);i<=(y);++i)
#define per(i,x,y) for(int i=(x);i>=(y);--i)
int n;
int main(){
	scanf("%d",&n);
	int lst=0,dir=0;
	int ans=1;
	rep(i,1,n){
		int x;scanf("%d",&x);
		if(dir==0){
			if(lst){
				if(lst<x)dir=1;
				if(lst>x)dir=-1;
			}
		}else{
			if((dir==1&&lst>x)||(dir==-1&&lst<x)){
				lst=0;++ans;dir=0;
			}
		}
		lst=x;
	}
	printf("%d",ans);
	return 0;
}

Submission Info

Submission Time
Task A - Sorted Arrays
User sjj118
Language C++14 (GCC 5.4.1)
Score 300
Code Size 455 Byte
Status AC
Exec Time 12 ms
Memory 128 KB

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:11:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   int x;scanf("%d",&x);
                       ^

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 128 KB
sample_02.txt AC 1 ms 128 KB
sample_03.txt AC 1 ms 128 KB
subtask_1_01.txt AC 7 ms 128 KB
subtask_1_02.txt AC 6 ms 128 KB
subtask_1_03.txt AC 4 ms 128 KB
subtask_1_04.txt AC 12 ms 128 KB
subtask_1_05.txt AC 12 ms 128 KB
subtask_1_06.txt AC 12 ms 128 KB
subtask_1_07.txt AC 12 ms 128 KB
subtask_1_08.txt AC 12 ms 128 KB
subtask_1_09.txt AC 12 ms 128 KB
subtask_1_10.txt AC 1 ms 128 KB
subtask_1_11.txt AC 1 ms 128 KB