Service Now Interview Question for Staff Engineers


Country: United States
Interview Type: In-Person




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0
of 0 vote

#include<bits/stdc++.h>
using namespace std;
int main(){
int n,k; //where k is target value and n is size of the array
cin>>n>>k;
int a[n],i,j;
for(i=0;i<n;i++)
cin>>a[i];
for(i=0;i<n;i++){
bool flag=false;
for(j=i+1;j<n;j++){
if(a[i]+a[j]==k){
flag=true;break;
}
}
if(flag)
break;
}
cout<<a[i]<<" "<<a[j];
return 0;
}

- amitkyadav September 13, 2018 | Flag Reply
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of 0 vote

Classic Two-sum problem. Sharing my solution in Python below.

def twoSum(nums, target):
  seenNumbers = set()

  for ind, num in enumerate(nums):
    complement = target - num
    if complement not in seenNumbers:
      seenNumbers.add(num)
    else:
      return [complement, num]
  return []

Test Code

print('Two Sum ->', twoSum([2,4,5,9,13], 17)) # OUTPUT: Two Sum -> [4, 13]
print('Two Sum ->', twoSum([2,4,5,9,13], 100)) # OUTPUT: Two Sum -> []

- prudent_programmer September 14, 2018 | Flag Reply


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