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You can initialize max value less than -63.
int max = -9*7;
Because there is a constraint:
-9 <= arr[i][j] <= 9
So there is no point to use value less than -9*7
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2D Array - DS
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You can initialize max value less than -63. int max = -9*7; Because there is a constraint: -9 <= arr[i][j] <= 9 So there is no point to use value less than -9*7