結果
問題 | No.154 市バス |
ユーザー | a3636tako |
提出日時 | 2016-07-22 19:15:56 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 194 ms / 2,000 ms |
コード長 | 2,655 bytes |
コンパイル時間 | 2,408 ms |
コンパイル使用メモリ | 77,740 KB |
実行使用メモリ | 43,976 KB |
最終ジャッジ日時 | 2024-10-13 08:40:42 |
合計ジャッジ時間 | 4,436 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 184 ms
43,836 KB |
testcase_01 | AC | 183 ms
43,976 KB |
testcase_02 | AC | 187 ms
43,804 KB |
testcase_03 | AC | 194 ms
43,760 KB |
testcase_04 | AC | 177 ms
43,852 KB |
testcase_05 | AC | 54 ms
36,728 KB |
testcase_06 | AC | 54 ms
36,688 KB |
testcase_07 | AC | 177 ms
43,396 KB |
testcase_08 | AC | 53 ms
36,532 KB |
ソースコード
import java.io.*; import java.util.*; public class Main{ public void solve(){ int T = nextInt(); for(int i = 0; i < T; i++){ String str = next(); int r = 0; int g = 0; boolean w = false; boolean clear = true; for(int j = str.length() - 1; j >= 0; j--){ switch(str.charAt(j)){ case 'R': r++; break; case 'G': r--; g++; w = true; if(r < 0){ clear = false; } break; case 'W': g = Math.max(g - 1, 0); if(!w){ clear = false; } break; } } if(r != 0 || g != 0){ clear = false; } if(clear){ out.println("possible"); }else{ out.println("impossible"); } } } public boolean check(String str, int idx){ if(idx + 3 >= str.length()) return false; if(str.charAt(idx) != 'i') return false; if(str.charAt(idx + 1) != 'w') return false; if(str.charAt(idx + 2) != 'i') return false; return true; } private static PrintWriter out; public static void main(String[] args){ out = new PrintWriter(System.out); new Main().solve(); out.flush(); } public static int nextInt(){ int num = 0; String str = next(); boolean minus = false; int i = 0; if(str.charAt(0) == '-'){ minus = true; i++; } int len = str.length(); for(;i < len; i++){ char c = str.charAt(i); if(!('0' <= c && c <= '9')) throw new RuntimeException(); num = num * 10 + (c - '0'); } return minus ? -num : num; } public static long nextLong(){ long num = 0; String str = next(); boolean minus = false; int i = 0; if(str.charAt(0) == '-'){ minus = true; i++; } int len = str.length(); for(;i < len; i++){ char c = str.charAt(i); if(!('0' <= c && c <= '9')) throw new RuntimeException(); num = num * 10l + (c - '0'); } return minus ? -num : num; } public static String next(){ int c; while(!isAlNum(c = read())){} StringBuilder build = new StringBuilder(); build.append((char)c); while(isAlNum(c = read())){ build.append((char)c); } return build.toString(); } private static byte[] inputBuffer = new byte[1024]; private static int bufferLength = 0; private static int bufferIndex = 0; private static int read(){ if(bufferLength < 0) throw new RuntimeException(); if(bufferIndex >= bufferLength){ try{ bufferLength = System.in.read(inputBuffer); bufferIndex = 0; }catch(IOException e){ throw new RuntimeException(e); } if(bufferLength <= 0) return (bufferLength = -1); } return inputBuffer[bufferIndex++]; } private static boolean isAlNum(int c){ return '!' <= c && c <= '~'; } }