Submission #241605

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
241605	2020-06-24 17:38:47	mosesmayer	Vision Program (IOI19_vision)	C++17	100 / 100	65 ms	5496 KiB

vision

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#include "vision.h"
#include <tuple>
using namespace std;
int H, W;
int coord(int i, int j) {
  return i * W + j;
};
vector<int> get_cells(int D, bool dir) {
  // dir is 1 if left diagonal (sum), 0 if right diagonal.
  vector<int> res;
  int start, stop, diff;
  if (dir) {
    start = D < W ? D : (D - W + 1) * W + (W - 1);
    stop = D < H ? D * W : (H - 1) * W + (D - H + 1);
    diff = W - 1;
  } else {
    start = D < W ? W - 1 - D : (D - W + 1) * W;
    stop = D < H ? (D + 1) * W - 1 : H * W - 1 - (D - H + 1);
    diff = W + 1;
  }
  for (; start <= stop; start += diff) {
    res.emplace_back(start);
    if (start == stop) break;
  }
  return res;
}
 
 
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