Created
September 16, 2024 08:29
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| function triangularSum(nums) { | |
| // duplicate the input array, nums | |
| let newNums = new Array(nums.length); | |
| for(let i = 0; i < nums.length; i++) { | |
| newNums[i] = nums[i]; | |
| } | |
| // while loop ensures the process continues until newNums.length == 1 | |
| while(newNums.length > 1) { | |
| // create a dummy array | |
| // this will store the sums of the previous array | |
| let newArr = new Array(newNums.length - 1); | |
| // loop through newArr and fill each index | |
| for(let i = 0; i < newNums.length - 1; i++) { | |
| newArr[i] = (newNums[i] + newNums[i + 1]) % 10; | |
| } | |
| // replace newNums with the result of newArr | |
| newNums = newArr; | |
| } | |
| // return the triangular sum | |
| return newNums[newNums.length - 1]; | |
| }; |
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