added

ishanuzzal · ishanuzzal · commit eb58de3ae3fa · 2023-06-24T01:07:49.000+06:00
diff --git a/two_pointer/2_subArraySum_Equals_k.cpp b/two_pointer/2_subArraySum_Equals_k.cpp
@@ -0,0 +1,72 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+#define ll long long
+#define pb push_back
+#define ppb pop_back
+#define F first
+#define S second
+#define fr(a, b)  		for(ll i = a; i < b; i++)
+typedef pair<int, int>	pii;
+typedef pair<ll, ll>	pl;
+typedef vector<int>		vi;
+typedef vector<ll>		vl;
+typedef vector<pii>		vpii;
+typedef vector<pl>		vpl;
+typedef vector<vi>		vvi;
+typedef vector<vl>		vvl;
+
+void init();
+
+int main(){
+    init();
+    int t;
+    cin>>t;
+    while(t--){
+       int n,a;
+       cin>>n>>a;
+       vi v;
+       ll sum=0,l=0,r=0,f=0,cnt=0;
+       int arr[n];
+       fr(0,n){
+        cin>>arr[i];
+       }
+       
+       for(; l<n && r<n; ){
+        sum+=arr[r];
+        if(sum==a){
+          v.pb(l);
+          v.pb(r);
+          cnt++;
+          if(cnt==2) break;
+        }
+        if(sum<a){
+          r++;
+        }
+        else{
+          sum-=arr[r];
+          sum-=arr[l];
+          l++;
+        }
+       }
+
+       for(int i=0; i<v.size(); i++){
+        cout<<v[i]<<" ";
+       }
+       cout<<endl;
+    }
+
+    
+    
+    return 0;
+}
+
+
+void init() {
+  //int i, j, n, m;
+    #ifndef ONLINE_JUDGE
+    freopen("input.txt", "r", stdin);
+   // freopen("output.txt", "w", stdout);
+    #endif 
+}
