제출 #580944

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
580944		drdilyor	Vision Program (IOI19_vision)	C++17	0 / 100	3 ms	1104 KiB

vision

#if defined(ONPC) && !defined(_GLIBCXX_ASSERTIONS)
    #define _GLIBCXX_ASSERTIONS
#endif
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>
#ifdef ONPC
    #define cerr cout
    #include "t_debug.cpp"
#else
    #define debug(...) 42
#endif
#define allit(a) (a).begin(), (a).end()
#define sz(a) ((int) (a).size())
#include "vision.h"

using namespace std;
using ll = long long;
using vi = vector<int>;
namespace pd = __gnu_pbds;
template<typename K>
using ordered_set = pd::tree<K, pd::null_type, less<int>, pd::rb_tree_tag, pd::tree_order_statistics_node_update>;
template<typename... T>
using gp_hash_table = pd::gp_hash_table<T...>;//simple using statement gives warnings

const int INF = 1e9;
const ll INFL = 1e18;
const int N = 1e5;
const int RANDOM = chrono::high_resolution_clock::now().time_since_epoch().count();
mt19937 rng(RANDOM);

#define ENC(i,j) ((i) * m + (j))
void construct_network(int n, int m, int dist) {
    if (dist == 1) {
        vi pos;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                if (i) pos.push_back(add_and({ENC(i, j), ENC(i-1, j)}));
                if (j) pos.push_back(add_and({ENC(i, j), ENC(i, j-1)}));
            }
        }
        debug(pos);
        for (int i = 1, prev = pos.front(); i < sz(pos); i++) {
            prev = add_or({prev, pos[i]});
        }
    }
    else {
        int prev = -1;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                if (i + j == dist) {
                    if (prev == -1) prev = i*m + j;
                    else prev = add_or({prev, i*m + j});
                }
            }
        }
        add_and({prev, prev});
    }
}
#undef ENC

컴파일 시 표준 에러 (stderr) 메시지

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:11:24: warning: statement has no effect [-Wunused-value]
   11 |     #define debug(...) 42
      |                        ^~
vision.cpp:42:9: note: in expansion of macro 'debug'
   42 |         debug(pos);
      |         ^~~~~

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