Search in Rotated Sorted Array#26
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prathyu116 wants to merge 21 commits intoWeCode-Community-Dev:mainfrom
Open
Search in Rotated Sorted Array#26prathyu116 wants to merge 21 commits intoWeCode-Community-Dev:mainfrom
prathyu116 wants to merge 21 commits intoWeCode-Community-Dev:mainfrom
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added 21 commits
March 18, 2025 13:17
const arr = []
const prefixArr = []
const suffixArr = []
for (let i = 0; i < nums.length; i++) {
if (i === 0) {
prefixArr[i] = 1
} else {
prefixArr[i] = prefixArr[i - 1] * nums[i - 1]
}
}
for (var i = nums.length - 1; i >= 0; i--) {
if (i === nums.length - 1) {
suffixArr[i] = 1
} else {
suffixArr[i] = suffixArr[i + 1] * nums[i + 1]
}
}
for (let i = 0; i < nums.length; i++) {
arr[i] = prefixArr[i] * suffixArr[i]
};
return arr
}
console.log(productExceptSelf([1, 2, 3, 4])); // [24, 12, 8, 6]
//
/*
rightProduct__index[i]___leftProduct
then rightProduct*leftProduct
https://youtu.be/TW2m8m_FNJE
*/
var s = 0, e = nums.length - 1;
var res = nums[0];
while (s <= e) {
if(nums[s] < nums[e]) {
res = nums[s];
break
}
var mid = Math.floor((s + e) / 2);
res = Math.min(res, nums[mid]);
if (nums[s] <= nums[mid]) { //left sort
s = mid + 1; //got to right
} else {
e = mid;
}
}
return res;
};
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