Submission #725795

#	Time	Username	Problem	Language	Result	Execution time	Memory
725795		PixelCat	Vision Program (IOI19_vision)	C++14	14 / 100	9 ms	1568 KiB

vision

#include "vision.h"
#ifdef NYAOWO
#include "grader.cpp"
#endif

#include <bits/stdc++.h>
#define For(i, a, b) for(int i = a; i <= b; i++)
#define Forr(i,a, b) for(int i = a; i >= b; i--)
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define sz(x) ((int)x.size())
#define eb emplace_back
// #define int LL
using namespace std;
using LL = long long;
using pii = pair<int, int>;

void construct_network(int H, int W, int K) {
    // std::vector<int> Ns;
    // Ns = {0, 1};
    // int a = add_and(Ns);
    // Ns = {0, a};
    // int b = add_or(Ns);
    // Ns = {0, 1, b};
    // int c = add_xor(Ns);
    // add_not(c);
    vector<vector<int>> row(H);
    vector<vector<int>> col(W);
    For(i, 0, H - 1) For(j, 0, W - 1) {
        int id = i * W + j;
        row[i].eb(id);
        col[j].eb(id);
    }
    vector<int> or_row(H);
    vector<int> or_col(W);
    For(i, 0, H - 1) or_row[i] = add_or(row[i]);
    For(i, 0, W - 1) or_col[i] = add_or(col[i]);
    
    vector<int> adj;
    int a, b;

    if(H >= 2) {
        adj.clear();
        For(i, 0, H - 2) {
            adj.eb(add_and({or_row[i], or_row[i + 1]}));
        }
        a = add_and({add_xor(or_col), add_or(adj)});
    }
    
    if(W >= 2) {
        adj.clear();
        For(i, 0, W - 2) {
            adj.eb(add_and({or_col[i], or_col[i + 1]}));
        }
        b = add_and({add_xor(or_row), add_or(adj)});
    }
    
    if(H >= 2 && W >= 2) {
        add_or({a, b});
    }
}

Compilation message (stderr)

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:60:22: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized]
   60 |         add_or({a, b});
      |                      ^

• Subtask 1: 0 / 10
• Subtask 2: 0 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 15
• Subtask 5: 0 / 12
• Subtask 6: 0 / 8
• Subtask 7: 14 / 14
• Subtask 8: 0 / 19