Added 1560B - Who's Opposite?.cpp

Author: vikashpatel24

1560B - Who's Opposite.cpp

@@ -0,0 +1,47 @@
+//                                 ॐ नमः शिवाय
+#include<bits/stdc++.h>
+using namespace std;
+
+#define ll long long
+#define pb push_back
+#define ff first
+#define ss second
+#define mp make_pair
+ 
+// Code Written By: Vikash Patel
+// Codeforces Profile: https://codeforces.com/profile/vikashpatel
+
+int solve()
+{
+    int a,b,c;
+    cin>>a>>b>>c;
+    int d = abs(a-b);
+    int tp = d*2;
+    if(a>tp || b>tp || c>tp || d == 1 || tp%2)
+    return -1;
+    if(c+d>=1 && c+d<=tp)
+    return c+d;
+    if(c-d>=1 && c-d<=tp)
+    return c-d;
+    return -1;
+}
+int main()
+{
+    ios_base::sync_with_stdio(0);
+    cin.tie(0);
+    cout.tie(0);
+    
+    // #ifndef ONLINE_JUDGE
+    // freopen("input.txt", "r", stdin);
+    // freopen("/Users/vikash/Desktop/output.txt", "w", stdout);
+    // #endif
+    
+    int t;
+    cin>>t;
+    while(t--)
+    {
+        cout<<solve()<<endl;
+    }
+    return 0;
+}
+