Submission #704361

Source Code Expand

#include <iostream>
#include <string>

#define REP(i, n) for(int i=0; i<n; i++)

using namespace std;

int main(){
  int n, a=0;
  string s;
  cin >> n;

  REP(i, n){
    cin >> s;
    if(s == "A"){
      a++;
    }else{
      a--;
      if(a < 0){
        cout << "NO" << endl;
        return 0;
      }
    }
  }

  if(a == 0){
    cout << "YES" << endl;
  }else{
    cout << "NO" << endl;
  }

  return 0;
}

Submission Info

Submission Time
Task A - 阿吽の呼吸
User cat12079801
Language C++14 (GCC 5.4.1)
Score 100
Code Size 442 Byte
Status AC
Exec Time 4 ms
Memory 256 KiB

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 4 ms 256 KiB
00_sample_01 AC 4 ms 256 KiB
00_sample_02 AC 4 ms 256 KiB
00_sample_03 AC 4 ms 256 KiB
01_random_00 AC 4 ms 256 KiB
01_random_01 AC 4 ms 256 KiB
01_random_02 AC 4 ms 256 KiB
01_random_03 AC 4 ms 256 KiB
01_random_04 AC 4 ms 256 KiB
01_random_05 AC 4 ms 256 KiB
01_random_06 AC 4 ms 256 KiB
01_random_07 AC 4 ms 256 KiB
01_random_08 AC 4 ms 256 KiB
01_random_09 AC 4 ms 256 KiB
02_valid_00 AC 4 ms 256 KiB
02_valid_01 AC 4 ms 256 KiB
02_valid_02 AC 4 ms 256 KiB
02_valid_03 AC 4 ms 256 KiB
02_valid_04 AC 4 ms 256 KiB
02_valid_05 AC 4 ms 256 KiB
02_valid_06 AC 4 ms 256 KiB
02_valid_07 AC 4 ms 256 KiB
02_valid_08 AC 4 ms 256 KiB
02_valid_09 AC 4 ms 256 KiB
03_random_maximum_00 AC 4 ms 256 KiB
03_random_maximum_01 AC 4 ms 256 KiB
03_random_maximum_02 AC 4 ms 256 KiB
03_random_maximum_03 AC 4 ms 256 KiB
03_random_maximum_04 AC 4 ms 256 KiB
03_random_maximum_05 AC 4 ms 256 KiB
03_random_maximum_06 AC 4 ms 256 KiB
03_random_maximum_07 AC 4 ms 256 KiB
03_random_maximum_08 AC 4 ms 256 KiB
03_random_maximum_09 AC 4 ms 256 KiB
04_valid_maximum_00 AC 4 ms 256 KiB
04_valid_maximum_01 AC 4 ms 256 KiB
04_valid_maximum_02 AC 4 ms 256 KiB
04_valid_maximum_03 AC 4 ms 256 KiB
04_valid_maximum_04 AC 4 ms 256 KiB
04_valid_maximum_05 AC 4 ms 256 KiB
04_valid_maximum_06 AC 4 ms 256 KiB
04_valid_maximum_07 AC 4 ms 256 KiB
04_valid_maximum_08 AC 4 ms 256 KiB
04_valid_maximum_09 AC 4 ms 256 KiB