sorted list remove duplicates code example
Example 1: remove duplicates from sorted array
// Java
public int removeDuplicates(int[] nums) {
if (nums.length == 0) return 0;
int i = 0;
for (int j = 1; j < nums.length; j++) {
if (nums[j] != nums[i]) {
i++;
nums[i] = nums[j];
}
}
return i + 1;
}
Example 2: remove duplicates in sorted array python
j = 0
// traverse elements of arr
for i=0 to n-2
// if ith element is not equal to (i+1)th element of arr, then store ith value in arr[j]
if arr[i] != arr[i+1]
arr[j] = arr[i]
j += 1
// store last value of arr in temp
arr[j] = arr[n-1]
j += 1
// print first j elements of array arr
for i=0 to j-1
print arr[i]