Submission #957575

#	Time	Username	Problem	Language	Result	Execution time	Memory
957575		nguyentunglam	Alice, Bob, and Circuit (APIO23_abc)	C++17	12 / 100	46 ms	8816 KiB

abc

#include "abc.h"
#include<bits/stdc++.h>
using namespace std;

// you may find the definitions useful
const int OP_ZERO    = 0;  // f(OP_ZERO,    x0, x1) = 0
const int OP_NOR     = 1;  // f(OP_NOR,     x0, x1) = !(x0 || x1)
const int OP_GREATER = 2;  // f(OP_GREATER, x0, x1) = (x0 > x1)
const int OP_NOT_X1  = 3;  // f(OP_NOT_X1,  x0, x1) = !x1
const int OP_LESS    = 4;  // f(OP_LESS,    x0, x1) = (x0 < x1)
const int OP_NOT_X0  = 5;  // f(OP_NOT_X0,  x0, x1) = !x0
const int OP_XOR     = 6;  // f(OP_XOR,     x0, x1) = (x0 ^ x1)
const int OP_NAND    = 7;  // f(OP_NAND,    x0, x1) = !(x0 && x1)
const int OP_AND     = 8;  // f(OP_AND,     x0, x1) = (x0 && x1)
const int OP_EQUAL   = 9;  // f(OP_EQUAL,   x0, x1) = (x0 == x1)
const int OP_X0      = 10; // f(OP_X0,      x0, x1) = x0
const int OP_GEQ     = 11; // f(OP_GEQ,     x0, x1) = (x0 >= x1)
const int OP_X1      = 12; // f(OP_X1,      x0, x1) = x1
const int OP_LEQ     = 13; // f(OP_LEQ,     x0, x1) = (x0 <= x1)
const int OP_OR      = 14; // f(OP_OR,      x0, x1) = (x0 || x1)
const int OP_ONE     = 15; // f(OP_ONE,     x0, x1) = 1


// Alice
int // returns la
alice(
    /*  in */ const int n,
    /*  in */ const char names[][5],
    /*  in */ const unsigned short numbers[],
    /* out */ bool outputs_alice[]
) {

    if (n == 1) {
      for(int i = 0; i < 16; i++) outputs_alice[i] = numbers[0] >> i & 1;
      for(int i = 16; i < 32; i++) outputs_alice[i] = 0;
      return 32;
    }
    return 2;
}


// Bob
int // returns lb
bob(
    /*  in */ const int m,
    /*  in */ const char senders[][5],
    /*  in */ const char recipients[][5],
    /* out */ bool outputs_bob[]
) {
    return m;
}

// Circuit
int // returns l
circuit(
    /*  in */ const int la,
    /*  in */ const int lb,
    /* out */ int operations[],
    /* out */ int operands[][2],
    /* out */ int outputs_circuit[][16]
) {
    int cnt = la + lb;
    if (la == 32) {
      auto calc = [&] (vector<int> a, vector<int> b) {
        vector<int> ret;
        assert(a.size() == 16 && b.size() == 16);
        int c = 0;
        for(int i = 0; i < 16; i++) {
          operations[cnt] = 6;
          operands[cnt][0] = a[i];
          operands[cnt][1] = b[i];
          int sum1 = cnt++;

          operations[cnt] = 8;
          operands[cnt][0] = a[i];
          operands[cnt][1] = b[i];
          int rem1 = cnt++;

          if (i == 0) {
            c = rem1;
            ret.push_back(sum1);
            continue;
          }

          operations[cnt] = 6;
          operands[cnt][0] = sum1;
          operands[cnt][1] = c;
          int sum2 = cnt++;

          ret.push_back(sum2);

          if (i == 15) return ret;

          operations[cnt] = 8;
          operands[cnt][0] = sum1;
          operands[cnt][1] = c;
          int rem2 = cnt++;

          operations[cnt] = 14;
          operands[cnt][0] = rem1;
          operands[cnt][1] = rem2;
          c = cnt++;
        }
        return ret;
      };

      vector<int> init;
      for(int i = 0; i < 16; i++) init.push_back(i);
      vector<int> cur;
      for(int i = 16; i < 32; i++) cur.push_back(i);
      for(int loop = 0; loop < lb; loop++) {
        cur = calc(cur, init);
      }

      for(int j = 0; j < 16; j++) outputs_circuit[0][j] = cur[j];
      return cnt;
    }

//    operations[5] = 8;
    operations[6] = 14;
//    operands[5][0] = 0; operands[5][1] = 4;
    operands[6][0] = 2; operands[6][1] = 5;
    int final_results[] = {20000, 0, 24464};
    for(int i = 0; i < 3; ++i)
        for(int j = 0; j < 16; ++j)
            outputs_circuit[i][j] = 5 + (final_results[i] >> j & 1);
    return 7;
}

• Subtask 1: 4 / 4
• Subtask 2: 4 / 4
• Subtask 3: 4 / 4
• Subtask 4: 0 / 24
• Subtask 5: 0 / 24
• Subtask 6: 0 / 6
• Subtask 7: 0 / 18
• Subtask 8: 0 / 10
• Subtask 9: 0 / 6