8 lines
359 B
Markdown
8 lines
359 B
Markdown
1. use ```int arr[][Columns]``` for 2-d function declaration
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2. ```#pragma gcc optimize("Ofast, inline")``` to increase speed
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3. use parens to close bitwise operations and %
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4. remember the scope in loops (int i) (int j)
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5. ```matrix[i][j]``` in scanning a 2d array.
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6. figure out ```matrix[i][j]``` and ```matrix[i][n-1]```
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More can be found in [[OJ-index]] |