結果
問題 | No.908 うしたぷにきあくん文字列 |
ユーザー | kitakitalily |
提出日時 | 2019-10-19 11:16:37 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,520 bytes |
コンパイル時間 | 2,265 ms |
コンパイル使用メモリ | 77,880 KB |
実行使用メモリ | 52,120 KB |
最終ジャッジ日時 | 2024-06-26 22:52:28 |
合計ジャッジ時間 | 4,121 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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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 | 52 ms
49,724 KB |
testcase_01 | AC | 52 ms
50,020 KB |
testcase_02 | AC | 53 ms
49,748 KB |
testcase_03 | AC | 54 ms
49,656 KB |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | AC | 53 ms
49,632 KB |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | AC | 53 ms
49,996 KB |
testcase_11 | AC | 53 ms
50,020 KB |
testcase_12 | WA | - |
testcase_13 | AC | 52 ms
49,996 KB |
testcase_14 | WA | - |
testcase_15 | AC | 52 ms
50,068 KB |
testcase_16 | WA | - |
testcase_17 | AC | 51 ms
49,996 KB |
testcase_18 | WA | - |
testcase_19 | AC | 53 ms
50,108 KB |
ソースコード
import java.util.*; import java.io.*; public class Main { static long mod = 998244353; static int INF = 1000000000; public static void main(String[] args){ FastScanner scanner = new FastScanner(); String s = scanner.next(); int n = s.length(); for(int i = 0; i < n; i++){ if((i+1) % 2 == 0 && s.charAt(i) != ' '){ System.out.println("No"); return; }else if((i+1) % 2 == 1 && s.charAt(i) == ' '){ System.out.println("No"); return; } } System.out.println("Yes"); return; } static class BIT{ int n; int[] bit; public BIT(int n){ this.n = n; bit = new int[n+1]; } void add(int idx, int val){ for(int i = idx+1; i <= n; i += i&(-i)) bit[i-1] += val; } int sum(int idx){ int res = 0; for(int i = idx+1; i > 0; i -= i&(-i)) res += bit[i-1]; return res; } int sum(int begin, int end){ if(begin == 0) return sum(end); return sum(end)-sum(begin-1); } } static class Pair implements Comparable<Pair>{ int first, second; Pair(int a, int b){ first = a; second = b; } @Override public boolean equals(Object o){ if (this == o) return true; if (!(o instanceof Pair)) return false; Pair p = (Pair) o; return first == p.first && second == p.second; } @Override public int compareTo(Pair p){ //return first == p.first ? second - p.second : first - p.first; //firstで昇順にソート //return (first == p.first ? second - p.second : first - p.first) * -1; //firstで降順にソート //return second == p.second ? first - p.first : second - p.second;//secondで昇順にソート //return (second == p.second ? first - p.first : second - p.second)*-1;//secondで降順にソート //return first * 1.0 / second > p.first * 1.0 / p.second ? 1 : -1; // first/secondの昇順にソート //return first * 1.0 / second < p.first * 1.0 / p.second ? 1 : -1; // first/secondの降順にソート //return second * 1.0 / first > p.second * 1.0 / p.first ? 1 : -1; // second/firstの昇順にソート //return second * 1.0 / first < p.second * 1.0 / p.first ? 1 : -1; // second/firstの降順にソート //return Math.atan2(second, first) > Math.atan2(p.second, p.first) ? 1 : -1; // second/firstの昇順にソート //return first + second > p.first + p.second ? 1 : -1; //first+secondの昇順にソート //return first + second < p.first + p.second ? 1 : -1; //first+secondの降順にソート //return first - second < p.first - p.second ? 1 : -1; //first-secondの降順にソート return Math.atan2(second,first) > Math.atan2(p.second, p.first) ? 1 : -1; } } private static class FastScanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; private boolean hasNextByte() { if (ptr < buflen) { return true; }else{ ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } if (buflen <= 0) { return false; } } return true; } private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;} private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;} public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();} public String next() { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int b = readByte(); while(isPrintableChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public long nextLong() { if (!hasNext()) throw new NoSuchElementException(); long n = 0; boolean minus = false; int b = readByte(); if (b == '-') { minus = true; b = readByte(); } if (b < '0' || '9' < b) { throw new NumberFormatException(); } while(true){ if ('0' <= b && b <= '9') { n *= 10; n += b - '0'; }else if(b == -1 || !isPrintableChar(b)){ return minus ? -n : n; }else{ throw new NumberFormatException(); } b = readByte(); } } public int nextInt() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next());} } }