Why this code is not passing all test case?

#1
#2

your code does not handle duplicates
u need to skip all the duplicate elements

#3

vector<vector> threeSum(vector& nums) {
vector<vector> output;
sort(nums.begin(), nums.end());
for (int i = 0; i < nums.size(); ++i) {
// Never let i refer to the same value twice to avoid duplicates.
if (i != 0 && nums[i] == nums[i - 1]) continue;
int j = i + 1;
int k = nums.size() - 1;
while (j < k) {
if (nums[i] + nums[j] + nums[k] == 0) {
output.push_back({nums[i], nums[j], nums[k]});
++j;
// Never let j refer to the same value twice (in an output) to avoid duplicates
while (j < k && nums[j] == nums[j-1]) ++j;
} else if (nums[i] + nums[j] + nums[k] < 0) {
++j;
} else {
–k;
}
}
}
return output;
}
use this function to refer to the correct code

#4

hey @itismohiton if your doubt is solved, please mark it as resolved

#5

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