Submission #988905

#	Time	Username	Problem	Language	Result	Execution time	Memory
988905		Otalp	Alice, Bob, and Circuit (APIO23_abc)	C++17	36 / 100	148 ms	79564 KiB

abc

#include "abc.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long
#define pii pair<int, int>
#define ff first
#define ss second


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[]
) {
    int l = 0;
    set<string> d;
    vector<string> h;
    for(int i=0; i<n; i++){
        string a="";
        for(int j=0; j<5; j++){
            if(names[i][j] == '\00'){
                break;
            }
            a.pb(names[i][j]);
        }
        h.pb(a);
        d.insert(a);
    }
    int ls = 0;
    map<string, int> td;
    for(auto it: d){
        td[it] = ++ls;
    }
    vector<pii> q;
    for(int i=0; i<n; i++){
        q.pb({td[h[i]], numbers[i]});
    }
    sort(q.begin(), q.end());
    for(int i=0; i<n; i++){
        //cout<<q[i].ff<<' '<<q[i].ss<<'\n';
        for(int k=0; k<16; k++){
            outputs_alice[l++] = bool((q[i].ss & (1 << k)));
            //cout<<bool((q[i].ss & (1 << k)));
        }
        //cout<<'\n';
    }
    for(int i=0; i<n; i++){
        for(int k=0; k<16; k++){
            outputs_alice[l++] = bool((td[h[i]] & (1 << k)));
        }
    }
    //for(int i=0; i<l; i++){
        //cout<<outputs_alice[i];
        //if(i % 16 == 15) cout<<'\n';
    //}
    return l;
}














// Bob
int // returns lb
bob(
    /*  in */ const int m,
    /*  in */ const char senders[][5],
    /*  in */ const char recipients[][5],
    /* out */ bool outputs_bob[]
) {
    int l = 0;
    set<string> d;
    for(int i=0; i<m; i++){
        string a="";
        for(int j=0; j<5; j++){
            if(senders[i][j] == '\00'){
                break;
            }
            a.pb(senders[i][j]);
        }
        d.insert(a);
    }
    for(int i=0; i<m; i++){
        string a="";
        for(int j=0; j<5; j++){
            if(recipients[i][j] == '\00'){
                break;
            }
            a.pb(recipients[i][j]);
        }
        d.insert(a);
    }

    int ls = 0;
    map<string, int> td;
    for(auto it: d){
        td[it] = ++ls;
    }
    map<pii, int> q;
    for(int i=0; i<m; i++){
        q[{td[senders[i]], td[recipients[i]]}] ++;
    }
    for(int i=1; i<=d.size(); i++){
        for(int j=1; j<=d.size(); j++){
            for(int k=0; k<16; k++){
                outputs_bob[l++] = bool((q[{j, i}] & (1 << k)));
            }
        }
    }
    return l;
}





vector<int> ro;
vector<pii> rp;


int add(int l, int cad, int a, int b){
    ro.pb(OP_XOR);
    ro.pb(OP_AND);
    rp.pb({cad, a});
    rp.pb({cad, a});
    ro.pb(OP_AND);
    rp.pb({b, l+1});
    ro.pb(OP_XOR);
    rp.pb({b, l+1});
    ro.pb(OP_OR);
    rp.pb({l+3, l+2});
    return l + 5;
}

int sum(int l, int a, int b){
    ro.pb(OP_ZERO);
    rp.pb({0, 0});
    vector<int> res;
    l++;
    for(int i=0; i<16; i++){
        l = add(l, l, a + i, b + i);
        res.pb(l - 1);
    }
    for(int i=0; i<16; i++){
        ro.pb(OP_X1);
        rp.pb({0, res[i]});
        l++;
    }
    return l;
}



int mult(int l, int a, int b){
    for(int i=0; i<16; i++){
        ro.pb(OP_ZERO);
        rp.pb({0, 0});
        l++;
    }
    int ls = l-15;
    for(int k=0; k<16; k++){
        int s = l + 1;
        for(int i=0; i<16; i++){
            ro.pb(OP_AND);
            rp.pb({a + i, b + k});
            l++;
        }
        l = sum(l, s, ls);
        ls = l - 15;
        if(k < 15){
            l = sum(l, a, a);
            a = l - 15;
        }
    }
    return l;
}







// 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]
) {
    ro.clear();
    rp.clear();
    int l = la + lb - 1;
    int n = la / 32;
    vector<int> res;
    int ls = l - 15;
    for(int i=0; i<n; i++){
        int ls = l + 1;
        for(int k=0; k<16; k++){
            ro.pb(OP_ZERO);
            rp.pb({0, 0});
            l++;
        }
        for(int j=0; j<n; j++){
            l = mult(l, 16 * j, la + 16 * n * i + 16 * j);
            //cout<<i<<' '<<j<<' ';
            //cout<<16 * j<<' '<<la + 16 * n * i + 16 * j<<'\n';
            l = sum(l, ls, l-15);
            ls = l - 15;
        }
        res.pb(ls);
    }
    for(int i=0; i<la + lb; i++){
        operations[i] = 0;
        operands[i][0] = -1;
        operands[i][1] = -1;
    }
    for(int i=la + lb; i<=l; i++){
        operations[i] = ro[i - la - lb];
        operands[i][0] = rp[i - la - lb].ff;
        operands[i][1] = rp[i - la - lb].ss;
    }
    for(int k=0; k<n; k++){
        int ls = res[k];
        for(int i=0; i<16; i++){
            outputs_circuit[k][i] = ls + i;
        }
    }
    return l + 1;
}

Compilation message (stderr)

abc.cpp: In function 'int bob(int, const char (*)[5], const char (*)[5], bool*)':
abc.cpp:139:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::set<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  139 |     for(int i=1; i<=d.size(); i++){
      |                  ~^~~~~~~~~~
abc.cpp:140:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::set<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  140 |         for(int j=1; j<=d.size(); j++){
      |                      ~^~~~~~~~~~
abc.cpp: In function 'int circuit(int, int, int*, int (*)[2], int (*)[16])':
abc.cpp:234:9: warning: unused variable 'ls' [-Wunused-variable]
  234 |     int ls = l - 15;
      |         ^~

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