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# Given an array of random numbers, push all the zeroes of a given array to the end of the array. For example, if the given array is {1, 9, 8, 4, 0, 0, 2, 7, 0, 6, 0}, it should be changed to {1, 9, 8, 4, 2, 7, 6, 0, 0, 0, 0}. The order of all other elements should be same. Expected time complexity is O(n) and extra space is O(1). # Input : arr[] = {1, 2, 0, 4, 3, 0, 5, 0}; # Output : arr[] = {1, 2, 4, 3, 5, 0, 0, 0}; # Input : arr[] = {1, 2, 0, 0, 0, 3, 6}; # Output : arr[] = {1, 2, 3, 6, 0, 0, 0};
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Software Validation Engineer

Interviewed at NVIDIA

4.4★
Oct 21, 2025

# Given an array of random numbers, push all the zeroes of a given array to the end of the array. For example, if the given array is {1, 9, 8, 4, 0, 0, 2, 7, 0, 6, 0}, it should be changed to {1, 9, 8, 4, 2, 7, 6, 0, 0, 0, 0}. The order of all other elements should be same. Expected time complexity is O(n) and extra space is O(1). # Input : arr[] = {1, 2, 0, 4, 3, 0, 5, 0}; # Output : arr[] = {1, 2, 4, 3, 5, 0, 0, 0}; # Input : arr[] = {1, 2, 0, 0, 0, 3, 6}; # Output : arr[] = {1, 2, 3, 6, 0, 0, 0};

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