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ES6 magic solution in Creative category for [old] Weak Point by driftcurrent
"use strict";
function weakPoint(matrix){
const sumRows = matrix.map(arr => arr.reduce((a,b)=>a+b))
const sumCols = matrix[0].map((x,i) => matrix.map(x => x[i])).map(arr => arr.reduce((a,b)=>a+b))
return [sumRows.indexOf(Math.min(...sumRows)), sumCols.indexOf(Math.min(...sumCols))]
}
var assert = require('assert');
if (!global.is_checking) {
assert.deepEqual(weakPoint([[7, 2, 7, 2, 8],
[2, 9, 4, 1, 7],
[3, 8, 6, 2, 4],
[2, 5, 2, 9, 1],
[6, 6, 5, 4, 5]]
), [3, 3], "Example");
assert.deepEqual(weakPoint([[7, 2, 4, 2, 8],
[2, 8, 1, 1, 7],
[3, 8, 6, 2, 4],
[2, 5, 2, 9, 1],
[6, 6, 5, 4, 5]]
), [1, 2], "Two weak point");
assert.deepEqual(weakPoint([[1, 1, 1],
[1, 1, 1],
[1, 1, 1]]
), [0, 0], "Top left");
}
Aug. 25, 2017
