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238.java
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238.java
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__________________________________________________________________________________________________
sample 1 ms submission
class Solution {
public int[] productExceptSelf(int[] nums) {
int n= nums.length;
int[] output = new int[n];
int temp = 1;
for(int i=0;i<n;i++){
output[i]=temp;
temp*=nums[i];
}
temp=1;
for(int i=n-1;i>=0;i--){
output[i]*=temp;
temp*=nums[i];
}
return output;
}
}
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sample 38936 kb submission
class Solution {
public int[] productExceptSelf(int[] nums) {
if(nums.length<2) return nums;
int l=nums.length;
int[] right=new int[l];
int idx=l-1;
right[idx--]=1;
while(idx>=0){
right[idx]=right[idx+1]*nums[idx+1];
idx--;
}
idx=0;
int left=1,temp=0;
while(idx<=l-1){
temp=nums[idx];
nums[idx]=left*right[idx];
left = left * temp;
idx++;
}
return nums;
}
}
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