From f663c2596f0026f8cc8ab3751cba52311487fe6b Mon Sep 17 00:00:00 2001
From: Deepak Yadav <31646033+deepakmca17du@users.noreply.github.com>
Date: Sun, 24 Oct 2021 12:34:06 +0530
Subject: [PATCH] Create circularTour

---
 circularTour | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 circularTour

diff --git a/circularTour b/circularTour
new file mode 100644
index 0000000..8fc7f77
--- /dev/null
+++ b/circularTour
@@ -0,0 +1,18 @@
+int tour(petrolPump p[],int n)
+    {
+       int startPoint=0;
+       int out_of_tank=0;
+       int in_tank=0;
+       for(int i=0;i<n;i++){
+           tank+=(p[i].petrol-p[i].distance);
+           if(tank<0){
+               out_of_tank+=tank; //saving all losses 
+               in_tank=0; //resetting tank 
+               start=i+1; //resetting start point to next
+           }
+       }
+       if(out_of_tank+in_tank>=0){  //if our current tank oil lvel can travel all throught the losses
+           return start;
+       }
+       return -1;  //without double while loop
+    }