結果

問題 No.619 CardShuffle
ユーザー 👑 hos.lyrichos.lyric
提出日時 2019-01-21 07:24:50
言語 D
(dmd 2.106.1)
結果
WA  
実行時間 -
コード長 4,208 bytes
コンパイル時間 1,596 ms
コンパイル使用メモリ 159,848 KB
実行使用メモリ 18,392 KB
最終ジャッジ日時 2023-09-03 22:46:20
合計ジャッジ時間 7,874 ms
ジャッジサーバーID
（参考情報） 		judge12 / judge13
このコードへのチャレンジ
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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 2 ms
4,380 KB
testcase_01 WA -
testcase_02 WA -
testcase_03 WA -
testcase_04 WA -
testcase_05 AC 2 ms
4,380 KB
testcase_06 WA -
testcase_07 WA -
testcase_08 WA -
testcase_09 WA -
testcase_10 AC 2 ms
4,376 KB
testcase_11 WA -
testcase_12 WA -
testcase_13 WA -
testcase_14 WA -
testcase_15 AC 2 ms
4,376 KB
testcase_16 WA -
testcase_17 WA -
testcase_18 WA -
testcase_19 WA -
testcase_20 AC 134 ms
15,968 KB
testcase_21 WA -
testcase_22 WA -
testcase_23 WA -
testcase_24 WA -
testcase_25 AC 111 ms
15,884 KB
testcase_26 WA -
testcase_27 WA -
testcase_28 WA -
testcase_29 WA -
testcase_30 AC 143 ms
16,100 KB
testcase_31 AC 2 ms
4,380 KB
testcase_32 AC 133 ms
16,108 KB
testcase_33 AC 173 ms
16,024 KB
testcase_34 WA -
testcase_35 WA -
権限があれば一括ダウンロードができます

ソースコード

diff # 

import std.conv, std.stdio, std.string;
import std.algorithm, std.array, std.bigint, std.container, std.math, std.numeric, std.range, 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; }

void chmin(T)(ref T t, in T f) { if (t > f) t = f; }
void chmax(T)(ref T t, in T f) { if (t < f) t = f; }

int binarySearch(T)(in T[] as, in bool delegate(T) test) { int low = -1, upp = cast(int)(as.length); for (; low + 1 < upp; ) { int mid = (low + upp) >> 1; (test(as[mid]) ? low : upp) = mid; } return upp; }
int lowerBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a < val)); }
int upperBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a <= val)); }


enum MO = 10L^^9 + 7;

class SegmentTree {
  int n;
  long[] prod;
  this(long[] ini) {
    for (n = 1; n < ini.length; n <<= 1) {}
    prod = new long[n << 1];
    foreach (i, val; ini) {
      prod[n + i] = val;
    }
    foreach_reverse (a; 1 .. n) {
      prod[a] = (prod[a << 1] * prod[a << 1 | 1]) % MO;
    }
  }
  void update(int a, long val) {
    prod[a += n] = val;
    for (a >>= 1; a; a >>= 1) {
      prod[a] = (prod[a << 1] * prod[a << 1 | 1]) % MO;
    }
  }
  long rangeProd(int a, int b) {
    long ret = 1;
    for (a += n, b += n; a <= b; a >>= 1, b >>= 1) {
      if ( a & 1) (ret *= prod[a++]) %= MO;
      if (~b & 1) (ret *= prod[b--]) %= MO;
    }
    return ret;
  }
}

int N;
long[] C;
string[] O;
int Q;
string[] T;
int[] X, Y;

void main() {
  try {
    for (; ; ) {
      N = readInt() / 2 + 1;
      C = new long[N];
      O = new string[N + 1];
      C[0] = readLong();
      foreach (i; 1 .. N) {
        O[i] = readToken();
        C[i] = readLong();
      }
      O[0] = O[N] = "+";
      Q = readInt();
      T = new string[Q];
      X = new int[Q];
      Y = new int[Q];
      foreach (q; 0 .. Q) {
        T[q] = readToken();
        X[q] = readInt();
        Y[q] = readInt();
      }
      
      auto seg = new SegmentTree(C);
      auto pluses = new RedBlackTree!int();
      foreach (i; 0 .. N + 1) {
        if (O[i] == "+") {
          pluses.insert(i);
        }
      }
      
      void updateOp(int i) {
        debug {
          writeln("updateOp ", i, " ", O[i]);
        }
        switch (O[i]) {
          case "+": {
            // "*" -> "+"
            pluses.insert(i);
          } break;
          case "*": {
            // "+" -> "*"
            pluses.removeKey(i);
          } break;
          default: assert(false);
        }
      }
      foreach (q; 0 .. Q) {
        switch (T[q]) {
          case "!": {
            if (X[q] % 2 == 0) {
              if (O[X[q] / 2] != O[Y[q] / 2]) {
                swap(O[X[q] / 2], O[Y[q] / 2]);
                updateOp(X[q] / 2);
                updateOp(Y[q] / 2);
              }
            } else {
              swap(C[X[q] / 2], C[Y[q] / 2]);
              seg.update(X[q] / 2, C[X[q] / 2]);
              seg.update(Y[q] / 2, C[Y[q] / 2]);
            }
          } break;
          case "?": {
            const l = pluses.upperBound(X[q] / 2).front;
            const r = pluses.lowerBound(Y[q] / 2 + 1).back;
            debug {
              writeln("? ", X[q] / 2, " ", Y[q] / 2);
              writeln("  l = ", l, ", r = ", r);
            }
            long ans;
            if (l <= r) {
              ans += seg.rangeProd(X[q] / 2, l - 1);
              if (l < r) {
                ans += seg.rangeProd(l, r - 1);
              }
              ans += seg.rangeProd(r, Y[q] / 2);
            } else {
              ans += seg.rangeProd(X[q] / 2, Y[q] / 2);
            }
            ans %= MO;
            writeln(ans);
          } break;
          default: assert(false);
        }
        debug {
          writeln("C = ", C);
          writeln("pluses = ", pluses);
        }
      }
    }
  } catch (EOFException e) {
  }
}
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