fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. const int MAX_SIZE = 50;
  5.  
  6. int main() {
  7.     int mtSize, windLine[MAX_SIZE + 1][MAX_SIZE + 1];
  8.     cin >> mtSize;
  9.     for (int line = 1; line <= mtSize; ++line) {
  10.         for (int col = 1; col <= mtSize; ++col) {
  11.             cin >> windLine[line][col];
  12.         }
  13.     }
  14.     int linePos = 1, colPos = 1, lPlusC = linePos + colPos;
  15.     int lineDir = -1, colDir = 1;
  16.     for (int i = 1, j = 1; i <= mtSize || j <= mtSize;) {
  17.         cout << windLine[linePos][colPos] << " ";
  18.         if (lPlusC % 2) {
  19.             if ((lineDir == 0 && colDir == 1 && lPlusC <= mtSize + 1) || 
  20.                 (lineDir == 1 && colDir == 0 && lPlusC >= mtSize + 1)) {
  21.                 lineDir = 1;
  22.                 colDir = -1;
  23.             }
  24.         } else {
  25.             if ((lineDir == 0 && colDir == 1 && lPlusC >= mtSize + 1) || 
  26.                 (lineDir == 1 && colDir == 0 && lPlusC <= mtSize + 1)) {
  27.                 lineDir = -1;
  28.                 colDir = 1;
  29.             }
  30.         }
  31.         if ((lineDir == 1 && colDir == -1 && lPlusC < mtSize + 1 && colPos == 1) ||
  32.             (lineDir == -1 && colDir == 1 && lPlusC >= mtSize + 1 && colPos == mtSize)) {
  33.             lineDir = 1;
  34.             colDir = 0;
  35.         }
  36.         if ((lineDir == 1 && colDir == -1 && lPlusC >= mtSize + 1 && linePos == mtSize) || 
  37.             (lineDir == -1 && colDir == 1 && lPlusC < mtSize + 1 && linePos == 1)) {
  38.             lineDir = 0;
  39.             colDir = 1;
  40.         }
  41.         linePos += lineDir;
  42.         colPos += colDir;
  43.         lPlusC = linePos + colPos;
  44.         if (colPos > mtSize) {
  45.             colPos = ++j;
  46.             linePos = 1;
  47.             lPlusC = linePos + colPos;
  48.         }
  49.         if (linePos > mtSize) {
  50.             linePos = ++i;
  51.             colPos = 1;
  52.             lPlusC = linePos + colPos;
  53.         }
  54.     }
  55.     return 0;
  56. }
  57.  
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
https://ideone.com/8XHQZq
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!