Submission #832668

#	Time	Username	Problem	Language	Result	Execution time	Memory
832668		benjaminkleyn	Vision Program (IOI19_vision)	C++17	100 / 100	44 ms	5352 KiB

vision

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

void construct_network(int h, int w, int k)
{
    vector<int> rd1(w + h - 1);
    vector<int> rd2(w + h - 1);
    vector<int> ld1(w + h - 1);
    vector<int> ld2(w + h - 1);
    for (int d = 0; d < w + h - 1; d++)
    {
        vector<int> idxR, idxL;
        // i + j = d
        for (int i = 0, j = d; i < h && j >= 0; i++, j--)
            if (j < w) idxR.push_back(i * w + j);
        // i + (w - 1 - j) = d
        for (int i = 0, j = w - d - 1; i < h && j < w; i++, j++)
            if (j >= 0) idxL.push_back(i * w + j);

        rd1[d] = add_or(idxR);
        rd2[d] = add_xor(idxR);

        ld1[d] = add_or(idxL);
        ld2[d] = add_xor(idxL);
    }

    vector<int> A, B;
    for (int d = 0; d + k < w + h - 1; d++)
    {
        vector<int> idxR1, idxR2, idxL1, idxL2;
        for (int i = d; i <= d + k; i++)
        {
            idxR1.push_back(rd1[i]);
            idxR2.push_back(rd2[i]);
            idxL1.push_back(ld1[i]);
            idxL2.push_back(ld2[i]);
        }
        int r1 = add_or(idxR1);
        int r2 = add_xor(idxR2);
        int l1 = add_or(idxL1);
        int l2 = add_xor(idxL2);
        A.push_back(add_and({r1, add_not(r2)}));
        B.push_back(add_and({l1, add_not(l2)}));
    }

    vector<int> C, D;
    for (int d = 0; d + k - 1 < w + h - 1; d++)
    {
        vector<int> idxR1, idxR2, idxL1, idxL2;
        for (int i = d; i <= d + k - 1; i++)
        {
            idxR1.push_back(rd1[i]);
            idxR2.push_back(rd2[i]);
            idxL1.push_back(ld1[i]);
            idxL2.push_back(ld2[i]);
        }
        int r1 = add_or(idxR1);
        int r2 = add_xor(idxR2);
        int l1 = add_or(idxL1);
        int l2 = add_xor(idxL2);
        C.push_back(add_and({r1, add_not(r2)}));
        D.push_back(add_and({l1, add_not(l2)}));
    }
    int x = add_and({add_or(A), add_or(B)});
    int y = add_and({add_or(C), add_or(D)});
    add_and({x, add_not(y)});
}

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 15 / 15
• Subtask 5: 12 / 12
• Subtask 6: 8 / 8
• Subtask 7: 14 / 14
• Subtask 8: 19 / 19