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Subarray_with_given_sum.cpp
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Subarray_with_given_sum.cpp
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#include<bits/stdc++.h>
using namespace std;
class Solution
{
public:
vector<int> subarraySum(int arr[], int n, long long s)
{
vector <int> v;
int start = 0;
int current_sum = 0;
for(int i=0;i<n;i++)
{
current_sum+= arr[i];
while(current_sum >= s && v.size() == 0)
{
if(current_sum == s)
{
v.push_back(start+1);
v.push_back(i+1);
break;
}
current_sum-=arr[start];
start++;
}
}
if(v.size()==0)
{
v.push_back(-1);
}
return v;
}
};
int main()
{
int t;
cin>>t;
while(t--)
{
int n;
long long s;
cin>>n>>s;
int arr[n];
const int mx = 1e9;
for(int i=0;i<n;i++)
{
cin>>arr[i];
}
Solution ob;
vector<int>res;
res = ob.subarraySum(arr, n, s);
for(int i = 0;i<res.size();i++)
cout<<res[i]<<" ";
cout<<endl;
}
return 0;
}