Question

write a programme for measuring the time the time that elpse between the satarty and end clicks

Answer 1

#include <bits/stdc++.h>

using namespace std;

// A sample function whose time taken to

// be measured

void fun()

{

for (int i=0; i<10; i++)

{

}

}

int main()

{

/* Time function returns the time since the

Epoch(jan 1 1970). Returned time is in seconds. */

time_t start, end;

/* You can call it like this : start = time(NULL);

in both the way start contain total time in seconds

since the Epoch. */

time(&start);

// unsync the I/O of C and C++.

ios_base::sync_with_stdio(false);

fun();

// Recording end time.

time(&end);

// Calculating total time taken by the program.

double time_taken = double(end - start);

cout << "Time taken by program is : " << fixed

<< time_taken << setprecision(5);

cout << " sec " << endl;

return 0;

}