Submission #1350860

#	Time	Username	Problem	Language	Result	Execution time	Memory
1350860		Desh03	Vision Program (IOI19_vision)	C++20	Compilation error	0 ms	0 KiB

vision

#include "vision.h"
#include <bits/stdc++.h>

using namespace std;

void construct_network(int h, int w, int k) {
    if (min(h, w) == 1) {
        for (int i = 0; i < h; i++) {
            for (int j = 0; j < w; j++) {
                for (int i2 = 0; i2 < h; i2++) {
                    for (int j2 = 0; j2 < w; j2++) {
                        if (abs(i - i2) + abs(j - j2) == k && make_pair(i, j) < make_pair(i2, j2)) {
                            add_and({w * i + j, w * i2 + j2});
                            v.push_back(h * w + v.size());
                        }
                    }
                }
            }
        }
        if (v.empty()) {
            for (int i = 0; i < h; i++) {
                for (int j = 0; j < w; j++) {
                    v.push_back({h * w + v.size()});
                }
            }
            add_and(v);
        } else {
            add_or(v);
        }
        return;
    }
    vector<int> col(w), row(h), v;
    for (int i = 0; i < h; i++) {
        v.clear();
        for (int j = 0; j < w; j++) {
            v.push_back(w * i + j);
        }
        row[i] = add_or(v);
    }
    for (int j = 0; j < w; j++) {
        vector<int> v;
        for (int i = 0; i < h; i++) {
            v.push_back(w * i + j);
        }
        col[j] = add_or(v);
    }
    vector<int> x(w), y(h);
    vector<int> vv;
    for (int i = 0; i < h; i++) {
        v.clear();
        for (int j = 0; j < w; j++) {
            v.push_back(w * i + j);
        }
        vv.push_back(add_xor(v));
    }
    y[0] = add_not(add_or(vv));
    vv.clear();
    for (int j = 0; j < w; j++) {
        v.clear();
        for (int i = 0; i < h; i++) {
            v.push_back(w * i + j);
        }
        vv.push_back(add_xor(v));
    }
    x[0] = add_not(add_or(vv));
    for (int dx = min(k, w - 1); dx > 0; dx--) {
        if (dx == w - 1) {
            x[dx] = add_and({col[0], col[w - 1]});
            continue;
        }
        vector<int> v;
        for (int j = dx; j < w; j++) {
            v.push_back(add_and({col[j], col[j - dx]}));
        }
        x[dx] = add_or(v);
    }
    for (int dy = min(k, h - 1); dy > 0; dy--) {
        if (dy == h - 1) {
            y[dy] = add_and({row[0], row[h - 1]});
            continue;
        }
        vector<int> v;
        for (int j = dy; j < h; j++) {
            v.push_back(add_and({row[j], row[j - dy]}));
        }
        y[dy] = add_or(v);
    }
    v.clear();
    for (int i = max(0, k - h + 1); i <= min(w - 1, k); i++) {
        v.push_back(add_and({x[i], y[k - i]}));
    }
    add_or(v);
}

Compilation message (stderr)

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:14:29: error: 'v' was not declared in this scope
   14 |                             v.push_back(h * w + v.size());
      |                             ^
vision.cpp:20:13: error: 'v' was not declared in this scope
   20 |         if (v.empty()) {
      |             ^