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Deven
25 lines
601 B
JavaScript
25 lines
601 B
JavaScript
/**
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* @param {number} rowsCount
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* @param {number} colsCount
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* @return {Array<Array<number>>}
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*/
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Array.prototype.snail = function(rowsCount, colsCount) {
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n = this.length
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if (n !== rowsCount * colsCount) return []
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arr = Array(rowsCount)
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for (let i = 0; i < rowsCount; ++i) arr[i] = Array(colsCount)
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for (let i = 0; i < n; ++i) {
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let col = parseInt(i / rowsCount)
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let row = col % 2 === 0 ? i % rowsCount : rowsCount - (i % rowsCount) - 1
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arr[row][col] = this[i]
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}
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return arr
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}
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/**
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* const arr = [1,2,3,4];
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* arr.snail(1,4); // [[1,2,3,4]]
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*/ |