Submission #1064094

#	Time	Username	Problem	Language	Result	Execution time	Memory
1064094		kunzaZa183	Alice, Bob, and Circuit (APIO23_abc)	C++17	12 / 100	497 ms	494320 KiB

abc

#include "abc.h"
#include <bits/stdc++.h>
#include <cassert>
#include <iterator>
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

auto ntoi = [](string s) {
  int cur = 0;
  for (auto a : s) {
    cur *= 26;
    cur += a + 1 - 'a';
  }
  return cur;
};

const int maxc = 20, maxn = 16;

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

  vector<string> vs;
  vector<string> num;
  for (int i = 0; i < n; i++) {
    vs.push_back(bitset<maxc>(ntoi(names[i])).to_string());
    num.push_back(bitset<16>(numbers[i]).to_string());
    reverse(num.back().begin(), num.back().end());
  }

  for (int i = 0; i < n; i++) {
    for (int j = 0; j < maxc; j++)
      outputs_alice[(maxc + maxn) * i + j] = vs[i][j] - '0';
    for (int j = 0; j < 16; j++)
      outputs_alice[(maxc + maxn) * i + j + maxc] = num[i][j] - '0';
  }
  return (maxc + maxn) * n;
}

// Bob
int // returns lb
bob(
    /*  in */ const int m,
    /*  in */ const char senders[][5],
    /*  in */ const char recipients[][5],
    /* out */ bool outputs_bob[]) {
  string s;
  for (int i = 0; i < m; i++) {
    s += bitset<maxc>(ntoi(senders[i])).to_string();
    s += bitset<maxc>(ntoi(recipients[i])).to_string();
  }
  for (int i = 0; i < s.size(); i++)
    outputs_bob[i] = s[i] - '0';

  return (maxc + maxc) * 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]) {

  const int maxn = 16;
  int curfree = la + lb;

  auto calc = [&](int op, int op1, int op2) {
    operations[curfree] = op;
    operands[curfree][0] = op1, operands[curfree][1] = op2;
    // cout << curfree << ' ' << op << " " << op1 << " " << op2 << "\n";
    int ret = curfree++;
    // assert(curfree < 2e6);
    return ret;
  };

  auto newnum = [&]() {
    vector<int> vi(maxn);
    iota(vi.begin(), vi.end(), curfree);
    return vi;
  };

  auto group = [&](int op, vector<int> vi) {
    int ans = vi.front();
    for (int i = 1; i < vi.size(); i++)
      ans = calc(op, vi[i], ans);
    return ans;
  };

  auto checkthree = [&](vector<int> vi) {
    int a = calc(OP_AND, vi[0], vi[1]);
    int b = calc(OP_AND, vi[0], vi[2]);
    int c = calc(OP_AND, vi[1], vi[2]);

    int d = calc(OP_OR, a, b);
    int e = calc(OP_OR, c, d);
    return e;
  };

  auto add = [&](vector<int> vi, vector<int> vi2) {
    vector<int> res, paper(1, calc(OP_ZERO, 0, 0));
    for (int i = 0; i < maxn; i++) {
      res.push_back(group(OP_XOR, {vi[i], vi2[i], paper[i]}));
      if (i != maxn - 1)
        paper.push_back(checkthree({vi[i], vi2[i], paper[i]}));
    }

    return res;
  };

  auto same = [&](vector<int> vi, vector<int> vi2) {
    vector<int> sth;
    for (int i = 0; i < vi.size(); i++) {
      int ask = calc(OP_XOR, vi[i], vi2[i]);
      sth.push_back(calc(OP_NOT_X1, ask, ask));
    }
    return group(OP_AND, sth);
  };

  vector<vector<int>> output(la / (maxc + maxn), vector<int>(16));

  for (int i = 0; i < la / (maxc + maxn); i++)
    for (int j = 0; j < 16; j++)
      output[i][j] = calc(OP_ZERO, 0, 0);

  for (int i = 0; i < lb / (maxc + maxc); i++)
    for (int j = 0; j < la / (maxc + maxn); j++)
      for (int k = 0; k < la / (maxc + maxn); k++) {
        vector<int> vi1, vi2, vi3, vi4;
        for (int l = 0; l < maxc; l++) {
          vi1.push_back((maxc + maxn) * j + l);
        }
        for (int l = 0; l < maxc; l++) {
          vi2.push_back((maxc + maxn) * k + l);
        }

        for (int l = 0; l < maxc; l++) {
          vi3.push_back(la + (maxc + maxc) * i + l);
        }
        for (int l = 0; l < maxc; l++) {
          vi4.push_back(la + (maxc + maxc) * i + maxc + l);
        }

        // for (auto a : vi1)
        //   cout << a << " ";
        // cout << "\n";
        // for (auto a : vi2)
        //   cout << a << " ";
        // cout << "\n";
        // for (auto a : vi3)
        //   cout << a << " ";
        // cout << "\n";
        // for (auto a : vi4)
        //   cout << a << " ";
        // cout << "\n";
        int sm = same(vi1, vi3), sm2 = same(vi2, vi4);
        int sm3 = calc(OP_AND, sm, sm2);

        vector<int> vi5;
        for (int l = 0; l < 16; l++) {
          vi5.push_back(calc(OP_AND, sm3, (maxc + maxn) * j + maxc + l));
        }

        output[k] = add(output[k], vi5);

        // if (j == 0 && k == 0) {
        // }
      }
  for (int i = 0; i < la / (maxc + maxn); i++) {
    for (int j = 0; j < 16; j++)
      outputs_circuit[i][j] = output[i][j];
  }

  // for (int i = 0; i < la / (maxc + maxn); i++) {
  //   for (int j = 0; j < 16; j++)
  //     outputs_circuit[i][j] = calc(OP_ZERO, 0, 0);
  // }

  // outputs_circuit[i][j] = sm2;

  return curfree;
}

Compilation message (stderr)

abc.cpp: In function 'int bob(int, const char (*)[5], const char (*)[5], bool*)':
abc.cpp:73:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |   for (int i = 0; i < s.size(); i++)
      |                   ~~^~~~~~~~~~
abc.cpp: In lambda function:
abc.cpp:108:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  108 |     for (int i = 1; i < vi.size(); i++)
      |                     ~~^~~~~~~~~~~
abc.cpp: In lambda function:
abc.cpp:136:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  136 |     for (int i = 0; i < vi.size(); i++) {
      |                     ~~^~~~~~~~~~~
abc.cpp: In function 'int circuit(int, int, int*, int (*)[2], int (*)[16])':
abc.cpp:100:8: warning: variable 'newnum' set but not used [-Wunused-but-set-variable]
  100 |   auto newnum = [&]() {
      |        ^~~~~~

• 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