class Solution { public int threeSumSmaller(int[] nums, int target) { Arrays.sort(nums); int count = 0; for(int i = 0; i < nums.length - 2; i++){ int sum = target - nums[i]; int j = i + 1; int k = nums.length - 1; while(j < k){ int current_sum = nums[j] + nums[k]; if(current_sum < sum){ count += k - j; j++; }else{ k--; } } } return count; } }
259. 3Sum Smaller
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