pepcoding.com 19/10/21 targetSumPair1

code.cpp

#include<bits/stdc++.h>
using namespace std;
void input(vector<int> &arr)
{
    for (int i = 0; i < arr.size(); i++)
    {
        cin >> arr[i];
    }
}
void targetSumPair(vector<int> &arr,int target)
{
    sort(arr.begin(),arr.end());
    int si=0,ei=arr.size()-1;
    while(si<ei)
    {
        int sum=arr[si]+arr[ei];
        if(sum<target)
        {
            si++;
        }else if(sum>target)
        {
            ei--;
        }
        else
        {
            cout<<arr[si]<<", "<<arr[ei]<<endl;
           si++;
           ei--;
        }
    }
}
int main()
{
    int n,target;
    cin>>n;
    vector<int> vec(n,0);
    input(vec);
    cin>>target;
    targetSumPair(vec,target);
    return 0;
}

code.py

def targetSumPair(arr,target):
    arr.sort();
    si=0;
    ei=len(arr)-1;
    while si<ei:
        s=arr[si]+arr[ei];
        if(s>target):
            ei-=1;
        elif(s<target):
            si+=1;
        elif s==target:
            print("%d, %d"%(arr[si],arr[ei]));
            si+=1;
            ei-=1;
            


n=int(input());
arr=[];
for i in range(0,n):
    val=int(input());
    arr.append(val);
target=int(input());
targetSumPair(arr,target);

snippet.cpp

#include <bits/stdc++.h>
using namespace std;
void input(vector<int> &arr)
{
    for (int i = 0; i < arr.size(); i++)
    {
        cin >> arr[i];
    }
}
void targetSumPair(vector<int> &arr, int target)
{
    //write your code here
}
int main()
{
    int n, target;
    cin >> n;
    vector<int> vec(n, 0);
    input(vec);
    cin >> target;
    targetSumPair(vec, target);
    return 0;
}

snippet.py

def targetSumPair(arr,target):
    #write your code here


n=int(input());
arr=[];
for i in range(0,n):
    val=int(input());
    arr.append(val);
target=int(input());
targetSumPair(arr,target);