diff options
Diffstat (limited to 'top-interview-questions/easy/array/08_move_zeroes.cc')
| -rw-r--r-- | top-interview-questions/easy/array/08_move_zeroes.cc | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/top-interview-questions/easy/array/08_move_zeroes.cc b/top-interview-questions/easy/array/08_move_zeroes.cc new file mode 100644 index 0000000..074944c --- /dev/null +++ b/top-interview-questions/easy/array/08_move_zeroes.cc | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | class Solution { | ||
| 2 | public: | ||
| 3 | void moveZeroes(vector<int>& nums) { | ||
| 4 | // Invariant: left subset of array satisfies requirement. | ||
| 5 | bool sorted = false; | ||
| 6 | for (size_t i = 0; (i < nums.size()) && !sorted; ++i) { | ||
| 7 | if (nums[i] == 0) { | ||
| 8 | // Look for j>i with which to swap this 0. | ||
| 9 | // If not found, then we're done. | ||
| 10 | bool found = false; | ||
| 11 | for (size_t j = i+1; j < nums.size(); ++j) { | ||
| 12 | if (nums[j] != 0) { | ||
| 13 | nums[i] = nums[j]; | ||
| 14 | nums[j] = 0; | ||
| 15 | found = true; | ||
| 16 | break; | ||
| 17 | } | ||
| 18 | } | ||
| 19 | sorted = !found; | ||
| 20 | } | ||
| 21 | } | ||
| 22 | } | ||
| 23 | }; | ||
