Submission #1812991


Source Code Expand

#include "bits/stdc++.h"
using namespace std;

int main(){
	int n;
	cin>>n;
	
	int a=0;
	
	string c;
	int flag=1;
	for(int i=0;i<n;i++){
		cin>>c;
		if(c[0]=='A'){
			a++;
		}else{
			a--;
		}
		
		if(a<0){
			flag=0;
		}
	}
	
	if(a!=0)flag=0;
	
	if(flag){
		cout<<"YES"<<endl;
	}else{
		cout<<"NO"<<endl;
	}
	
	return 0;
}

Submission Info

Submission Time
Task A - 阿吽の呼吸
User shichinomiya
Language C++14 (GCC 5.4.1)
Score 100
Code Size 356 Byte
Status AC
Exec Time 1 ms
Memory 256 KB

Judge Result

Set Name All
Score / Max Score 100 / 100
Status
AC × 44
Set Name Test Cases
All 00_sample_00, 00_sample_01, 00_sample_02, 00_sample_03, 01_random_00, 01_random_01, 01_random_02, 01_random_03, 01_random_04, 01_random_05, 01_random_06, 01_random_07, 01_random_08, 01_random_09, 02_valid_00, 02_valid_01, 02_valid_02, 02_valid_03, 02_valid_04, 02_valid_05, 02_valid_06, 02_valid_07, 02_valid_08, 02_valid_09, 03_random_maximum_00, 03_random_maximum_01, 03_random_maximum_02, 03_random_maximum_03, 03_random_maximum_04, 03_random_maximum_05, 03_random_maximum_06, 03_random_maximum_07, 03_random_maximum_08, 03_random_maximum_09, 04_valid_maximum_00, 04_valid_maximum_01, 04_valid_maximum_02, 04_valid_maximum_03, 04_valid_maximum_04, 04_valid_maximum_05, 04_valid_maximum_06, 04_valid_maximum_07, 04_valid_maximum_08, 04_valid_maximum_09
Case Name Status Exec Time Memory
00_sample_00 AC 1 ms 256 KB
00_sample_01 AC 1 ms 256 KB
00_sample_02 AC 1 ms 256 KB
00_sample_03 AC 1 ms 256 KB
01_random_00 AC 1 ms 256 KB
01_random_01 AC 1 ms 256 KB
01_random_02 AC 1 ms 256 KB
01_random_03 AC 1 ms 256 KB
01_random_04 AC 1 ms 256 KB
01_random_05 AC 1 ms 256 KB
01_random_06 AC 1 ms 256 KB
01_random_07 AC 1 ms 256 KB
01_random_08 AC 1 ms 256 KB
01_random_09 AC 1 ms 256 KB
02_valid_00 AC 1 ms 256 KB
02_valid_01 AC 1 ms 256 KB
02_valid_02 AC 1 ms 256 KB
02_valid_03 AC 1 ms 256 KB
02_valid_04 AC 1 ms 256 KB
02_valid_05 AC 1 ms 256 KB
02_valid_06 AC 1 ms 256 KB
02_valid_07 AC 1 ms 256 KB
02_valid_08 AC 1 ms 256 KB
02_valid_09 AC 1 ms 256 KB
03_random_maximum_00 AC 1 ms 256 KB
03_random_maximum_01 AC 1 ms 256 KB
03_random_maximum_02 AC 1 ms 256 KB
03_random_maximum_03 AC 1 ms 256 KB
03_random_maximum_04 AC 1 ms 256 KB
03_random_maximum_05 AC 1 ms 256 KB
03_random_maximum_06 AC 1 ms 256 KB
03_random_maximum_07 AC 1 ms 256 KB
03_random_maximum_08 AC 1 ms 256 KB
03_random_maximum_09 AC 1 ms 256 KB
04_valid_maximum_00 AC 1 ms 256 KB
04_valid_maximum_01 AC 1 ms 256 KB
04_valid_maximum_02 AC 1 ms 256 KB
04_valid_maximum_03 AC 1 ms 256 KB
04_valid_maximum_04 AC 1 ms 256 KB
04_valid_maximum_05 AC 1 ms 256 KB
04_valid_maximum_06 AC 1 ms 256 KB
04_valid_maximum_07 AC 1 ms 256 KB
04_valid_maximum_08 AC 1 ms 256 KB
04_valid_maximum_09 AC 1 ms 256 KB