Added 900A - Find Extra One.cpp

Author: vikashpatel24

900A - Find Extra One.cpp

@@ -0,0 +1,35 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+// Code Written By: Vikash Patel
+
+// Codeforces Profile: https://codeforces.com/profile/vikashpatel
+
+int main()
+{
+    int n;
+    cin>>n;
+    int x[n],y[n];
+    int leftcord=0;
+    int rightcord=0;
+    for(int i=0;i<n;i++)
+    {
+        cin>>x[i]>>y[i];
+        if(x[i]<0)
+        {
+            leftcord++;
+        }
+        else
+        {
+            rightcord++;
+        }
+    }
+    if(leftcord==1 || rightcord==1 || (leftcord==0 && rightcord>0) || (leftcord>0 && rightcord==0))
+    {
+        cout<<"YES"<<endl;
+    }
+    else
+    {
+        cout<<"NO"<<endl;
+    }
+}