結果
問題 | No.1863 Xor Sum 2...? |
ユーザー |
👑 |
提出日時 | 2022-03-04 22:43:38 |
言語 | D (dmd 2.109.1) |
結果 |
AC
|
実行時間 | 27 ms / 2,000 ms |
コード長 | 2,242 bytes |
コンパイル時間 | 888 ms |
コンパイル使用メモリ | 121,856 KB |
実行使用メモリ | 13,252 KB |
最終ジャッジ日時 | 2024-06-22 14:31:58 |
合計ジャッジ時間 | 2,788 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 28 |
ソースコード
import std.conv, std.functional, std.range, std.stdio, std.string;import std.algorithm, std.array, std.bigint, std.bitmanip, std.complex, std.container, std.math, std.mathspecial, std.numeric, std.regex, std.typecons;import core.bitop;class EOFException : Throwable { this() { super("EOF"); } }string[] tokens;string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; }int readInt() { return readToken.to!int; }long readLong() { return readToken.to!long; }real readReal() { return readToken.to!real; }bool chmin(T)(ref T t, in T f) { if (t > f) { t = f; return true; } else { return false; } }bool chmax(T)(ref T t, in T f) { if (t < f) { t = f; return true; } else { return false; } }int binarySearch(alias pred, T)(in T[] as) { int lo = -1, hi = cast(int)(as.length); for (; lo + 1 < hi; ) { const mid = (lo + hi) >> 1;(unaryFun!pred(as[mid]) ? hi : lo) = mid; } return hi; }int lowerBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a >= val)); }int upperBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a > val)); }void main() {try {for (; ; ) {const N = readInt;auto A = new long[N];foreach (i; 0 .. N) {A[i] = readLong;}auto B = new int[N];foreach (i; 0 .. N) {B[i] = readInt;}auto ASum = new long[N + 1];auto AXor = new long[N + 1];auto BXor = new int[N + 1];foreach (i; 0 .. N) {ASum[i + 1] = ASum[i] + A[i];AXor[i + 1] = AXor[i] ^ A[i];BXor[i + 1] = BXor[i] ^ B[i];}auto cntB = new long[2][N + 2];foreach (i; 0 .. N + 1) {static foreach (b; 0 .. 2) {cntB[i + 1][b] = cntB[i][b] + ((BXor[i] == b) ? 1 : 0);}}bool check(int l, int r) {return (ASum[r] - ASum[l] == (AXor[r] ^ AXor[l]));}long ans;for (int i = 0, j; i < N; ++i) {for (; j + 1 <= N && check(i, j + 1); ++j) {}const b = BXor[i];ans += (cntB[j + 1][b] - cntB[i + 1][b]);}writeln(ans);}} catch (EOFException e) {}}