不必要的重复提及printf以使源代码易于阅读会减慢程序的速度吗？

As in the source code

如在源代码中

#include <stdio.h> 
#include <stdlib.h>

int main()
{    
    printf("\n\tQuadratic Equation Solver");
    printf("\n\nUse this program to solve a quadratic equation.\n");

    return 0;
}
#include <stdi