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Commit ad93710

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‎16. 3Sum Closest.cpp

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class Solution {
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public:
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int threeSumClosest(vector<int>& nums, int target) {
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sort(nums.begin(), nums.end());
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int n = nums.size();
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int closestSum = nums[0] + nums[1] + nums[2];
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for(int i = 0; i < n - 2; i++) {
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int j = i + 1;
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int k = n - 1;
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while(j < k) {
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int currSum = nums[i] + nums[j] + nums[k];
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if(abs(currSum - target) < abs(closestSum - target)) {
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closestSum = currSum;
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}
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if(currSum < target) {
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j++;
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}
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else {
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k--;
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}
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}
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}
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return closestSum;
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}
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};

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