Submission #981670

#	Time	Username	Problem	Language	Result	Execution time	Memory
981670		8pete8	Alice, Bob, and Circuit (APIO23_abc)	C++17	12 / 100	130 ms	9956 KiB

abc

#include "abc.h"
#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<unordered_map>
#include <queue>
#include<cstring>
#include<limits.h>
#include <cassert>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric> //gcd(a,b)
#include<bitset>
#include <cstdlib> 
#include <cstdint>
// 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[]
){
    for(int i=0;i<16;i++){
        if(numbers[0]&(1<<i))outputs_alice[i]=1;
        else outputs_alice[i]=0;
    }
    return 16;
}

// Bob
int // returns lb
bob(
    /*  in */ const int m,
    /*  in */ const char senders[][5],
    /*  in */ const char recipients[][5],
    /* out */ bool outputs_bob[]
) {
    for(int i=0;i<11;i++){
        if(m&(1<<i))outputs_bob[i]=1;
        else outputs_bob[i]=0;
    }
    return 11;
}
// 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]
) {
    //test
    int id=la+lb;
    int rep[la];
    for(int i=0;i<la;i++)rep[i]=-1;
    auto add=[&](int a,int b,int x){
        operations[id]=x;
        operands[id][0]=a,operands[id][1]=b;
        id++;
        return id-1;
    };
    int one=add(0,1,OP_OR);
    for(int i=2;i<la;i++)one=add(i,one,OP_OR);
    for(int i=0;i<lb;i++)one=add(i+la,one,OP_OR);
    for(int i=0;i<lb;i++)for(int j=0;j<la;j++){
        int x=add(j,i+la,OP_AND);
        //la=num,lb=multiply
        int pos=i+j;
        if(pos>=16)continue;
        if(rep[pos]==-1)rep[pos]=x;
        else{
            int last=x;
            for(int k=pos;k<la;k++){
                int nx=add(last,rep[k],OP_AND);
                rep[k]=add(rep[k],last,OP_XOR);
                last=nx;
            }
            //add pos->16 1
        }
    }
    for(int i=0;i<16;i++){
        if(rep[i]==-1)assert(0);
        outputs_circuit[0][i]=rep[i];
    }
    return id;
/*
when we are multiplying
if we look at it bit by bit
a,b =shift a->a+b
if its >16 then it will have to be shifted down
but what if that bit is arldy on
then we can find the max consecutive 1s bit and turn the pos+1 to 1
then make everything there 0
*/
}

• 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