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Food Chain.cpp

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+#include<bits/stdc++.h>
+using namespace std ;
+
+#define  ff      first 
+#define  ss      second
+#define  ull     unsigned long long 
+#define  mod     1000000007
+#define  inf     1e18
+#define  w(x)    int x;cin>>x;while(x--)
+#define  f(x,y)  for( x=0;x<y;x++) 
+
+int main(){
+    w(t){
+        long long e,k;
+        cin>>e>>k;
+        //int c=log(e)/log(k);
+        int counter=1 ;
+        float c = e/k;
+        while(floor(c)>=1){
+            counter++;
+            c=c/k;
+        }
+        //cout<<c<<endl;
+        cout<<counter<<endl;
+    }
+
+ 	return 0;
+}