SimAquarium Problem

simaquarium_problem.cpp

/*
 * Original problem with code
 */

/* Definition */
struct algae_position {
  int x;
  int y;
};

struct algae_position grid[16][16];
int total_x = 0, total_y = 0;
int i, j;

/* Usage */
for (i = 0; i < 16; i++) {
  for (j = 0; j < 16; j++) {
    total_x += grid[i][j].x;
  }
}
for (i = 0; i < 16; i++) {
  for (j = 0; j < 16; j++) {
    total_y += grid[i][j].y;
  }
}

simaquarium_solution_1.cpp

/*
 * Solution #1
 * # Should be much more efficient and performant.
 */

// ...
int i, j;

/* Usage */
for (i = 0; i < 16; i++) {
  for (j = 0; j < 16; j++) {
    total_x += grid[i][j].x;
    total_y += grid[i][j].y;
  }
}

simaquarium_solution_2.cpp

/*
 * Solution #2
 * # Not entirely sure if more efficient or not!
 */

// ...
int i, j;
algae_position grid_pos;

/* Usage */
for (i = 0; i < 16; i++) {
  for (j = 0; j < 16; j++) {
    grid_pos = grid[i][j];
    
    total_x += grid_pos.x;
    total_y += grid_pos.y;
  }
}