제출 #287272

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
287272	2020-08-31 14:42:34	AlexLuchianov	포탈들 (BOI14_portals)	C++14	100 / 100	479 ms	52616 KiB

portals

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#include <iostream>
#include <vector>
#include <cassert>
#include <algorithm>
#include <cmath>
#include <queue>
using ll = long long;
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) < (b)) ? (b) : (a))
int const nmax = 2000;
int const inf = nmax * nmax;
std::string mat[1 + nmax];
int n, m;
bool valid(int x, int y) {
  return 0 <= x && x < n && 0 <= y && y < m;
}
int const iplus[4] = {0, 0, 1, -1};
int const jplus[4] = {1, -1, 0, 0};
int dist[1 + nmax][1 + nmax];
int fast[4][1 + nmax][1 + nmax];
void precompute() {
  std::queue<std::pair<int,int>> q;
  for(int i = 0; i < n; i++)
    for(int j = 0; j < m; j++) {
      dist[i][j] = inf;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

portals.cpp: In function 'int main()':
portals.cpp:140:25: warning: 'y2' may be used uninitialized in this function [-Wmaybe-uninitialized]
  140 |   std::cout << dp[x2][y2];
      |                         ^
portals.cpp:140:25: warning: 'x2' may be used uninitialized in this function [-Wmaybe-uninitialized]
portals.cpp:112:10: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
  112 |   pq.push({x, y, 0});
      |   ~~~~~~~^~~~~~~~~~~
portals.cpp:112:10: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 11 / 11
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 19 / 19
• Subtask 5: 30 / 30