Submission #533469

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
533469	2022-03-06 06:08:46	Stro256	Mecho (IOI09_mecho)	C++14	100 / 100	177 ms	11004 KiB

mecho

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#include <bits/stdc++.h>
using namespace std;
const int mxN=800;
int n, s, d1[mxN][mxN], d2[mxN][mxN], si, sj, ti, tj, lb=0, rb=mxN*mxN, nb[4][2]={{0, 1}, {1, 0}, {0, -1}, {-1, 0}};
string g[mxN];
array<int, 2> qu[mxN*mxN];
void bfs(int d[mxN][mxN], int a) {
  int qt=0;
  for(int i=0; i<n; ++i)
    for(int j=0; j<n; ++j)
      if(!d[i][j])
        qu[qt++]={i, j};
  for(int i=0; i<qt; ++i) {
    array<int, 2> u=qu[i];
    if(a>=0&&d[u[0]][u[1]]/s+a>=d1[u[0]][u[1]])
      continue;
    for(int j=0; j<4; ++j) {
      int ni=u[0]+nb[j][0], nj=u[1]+nb[j][1];
      if(ni>=0&&ni<n&&nj>=0&&nj<n&&g[ni][nj]!='T'&&(a>=0||g[ni][nj]!='D')&&d[ni][nj]>1e7) {
        d[ni][nj]=d[u[0]][u[1]]+1;
        qu[qt++]={ni, nj};
      }
    }
  }
}
int main() {
  ios_base::sync_with_stdio(0);
 
 
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• Subtask 1: 100 / 100