19 lines
407 B
Solidity
19 lines
407 B
Solidity
pragma solidity 0.5.12;
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library Math {
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function min(uint x, uint y) internal pure returns (uint z) {
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return x <= y ? x : y;
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}
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function sqrt(uint x) internal pure returns (uint y) {
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if (x == 0) return 0;
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else if (x <= 3) return 1;
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uint z = (x + 1) / 2;
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y = x;
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while (z < y) {
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y = z;
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z = (x / z + z) / 2;
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}
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}
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}
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