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Q.02 of 40

Explain the difference between `uint` and `int` in Solidity.

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  • uint represents unsigned integers (positive numbers and zero only)
  • int represents signed integers (positive, negative, and zero)

Both come in different sizes: uint8 to uint256 and int8 to int256. The default uint is equivalent to uint256, and int is equivalent to int256.

uint256 public positiveNumber = 100; // Can only store 0 to 2^256 - 1
int256 public anyNumber = -50;       // Can store -2^255 to 2^255 - 1
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