Answer / sureshzzz

#include <stdio.h>
#include <math.h>
int main(){
float r,h;
float volume;
printf( "Enter size
of radius and height of
a cylinder : " );
scanf( "%f
%f" ,&r,&h);
volume = M_PI * r
* r * h;
printf( "\nVolume of
cylinder is :
%.3f" ,volume);
return 0;
}

Complexity T(n) What is the time complexity T(n) of the following portions of code? For simplicity, you may assume that n is a power of 2. That is, n = 2k for some positive integer k. a) ? for (i = 1; i <= n; i++) { j = n; cout << i << ? ? j << ? ? << endl; } b) ? for (i = 0; i <= n; i += 2) { j = n; cout << i << ? ? j << ? ? << endl; } c) ? for (i = n; i >= 1; i = i/2) { j = n; cout << i << ? ? j << ? ? << endl; } d) for (i = 1; i <= n; i++) { j = n; while (j >= 0) { cout << i << ? ? j << ? ? << endl; j = j - 2; } }

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