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Commit9d4b634

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‎src/arithmetic-slices/res.js

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Original file line numberDiff line numberDiff line change
@@ -52,3 +52,19 @@ let Sum = function(n) {
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// console.log(n);
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return(n-2)*(n-1)/2;
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};
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/**
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* Another solution
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*/
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// let solution = function(A) {
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// let curr = 0,
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// sum = 0;
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// for (let i = 2; i < A.length; i++)
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// if (A[i] - A[i - 1] == A[i - 1] - A[i - 2]) {
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// curr += 1;
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// sum += curr;
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// } else {
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// curr = 0;
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// }
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// return sum;
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// }

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