Merge pull request larissalages#194 from Anupam-Panwar/master

Added code of Covid Run Problem

Author: larissalages

CodeChef_problems/CVDRUN.cpp

@@ -0,0 +1,59 @@
+//************************** it's all about practice ***********************
+#include<bits/stdc++.h>
+using namespace std;
+//**** Abbrevations ****
+typedef long long ll;
+typedef unsigned long long ull;
+typedef long double ld;
+//**** STL ****
+#define pb push_back
+#define pf push_front
+#define ppb pop_back
+#define ppf pop_front
+#define ff first
+#define ss second
+#define mp make_pair
+#define ALL(x) x.begin(), x.end()
+//**** some I/O ****
+#define no         cout << "NO\n"
+#define yes        cout << "YES\n"
+//**** Fast I/O ****
+#define FAST_IO ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
+//**** Short Code ****
+#define tc ll t;cin>>t;while(t--)
+#define fi(a,b) for(ll i=a;i<b;i++)
+#define fj(a,b) for(ll j=a;j<b;j++)
+#define fk(a,b) for(ll k=a;k<b;k++)
+/*---------------------------------------------------------------------------*/
+int main()
+{
+    FAST_IO
+    tc
+    {
+        int n,k,x,y;
+        cin>>n>>k>>x>>y;
+        bool c=false;
+        int i=x;
+        if(x==y)
+            c=true;
+        else
+            i=(i+k)%n;
+        while(i!=x)
+        {
+            if(i==y)
+            {
+                c=true;
+                break;
+            }
+            else
+                i=(i+k)%n;
+        }
+        if(c==true)
+            yes;
+        else
+            no;
+
+    }
+    return 0;
+}
+