2022-10-12 10:24:09 +05:30
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/**
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2022-10-15 06:31:02 -03:00
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* Work out the first ten digits of the sum of the following one-hundred 50-digit numbers.
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*/
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2022-10-12 10:24:09 +05:30
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2022-10-15 06:31:02 -03:00
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export function largeSum (bignum) {
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const nums = []
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for (let i = 0; i < bignum.length; i += 50) {
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nums.push(bignum.slice(i, i + 50))
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}
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let pos = nums[0].length
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let ret = ''
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let num = 0
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while (pos--) {
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for (let i = nums.length; i--;) {
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num += +nums[i].charAt(pos)
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}
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ret = num % 10 + ret
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num = num / 10 | 0
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}
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2022-10-12 10:24:09 +05:30
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2022-10-15 06:31:02 -03:00
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if (num > 0) {
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ret = num + ret
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}
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return ret.slice(0, 10)
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2022-10-12 10:24:09 +05:30
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}
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