Write a function to find squre and cube of a num

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  void squrecube(float x,float *s,float *c)

   4:  {

   5:  *s=x*x;

   6:  *c=x*x*x;

   7:  }

   8:  void main()

   9:  {

  10:  float x,s,c;

  11:  printf("enter the num:");

  12:  scanf("%f",&x);

  13:  squrecube(x,&s,&c);

  14:  printf("squre=%f cube=%f",s,c);

  15:  getch();

  16:  }

Write a Program to Give output

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   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  void main()

   4:  {

   5:  int i,j,n,s;

   6:  printf("Enter the num of rows:\n");

   7:  scanf("%d",&n);

   8:  for(i=1;i<=n;i++)

   9:      {

  10:      for(s=n-i;s>=1;s--)

  11:          {

  12:          printf(" ");

  13:          }

  14:      for(j=1;j<=i;j++)

  15:          {

  16:          printf("%d ",j);

  17:          }

  18:      printf("\n");

  19:      }

  20:  getch();

  21:  }

Write a program that will provide a character string from command line which translates it into a number and evaluate and display its cube root

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  #include<math.h>

   4:  #include<stdlib.h>

   5:  void main(int argc,char *argv[])

   6:  {

   7:  float x;

   8:  if(argc<2)

   9:      {

  10:      printf("Insufficient number of arguments supplied:\n");

  11:      getch();

  12:      exit(0);

  13:      }

  14:  x=atof(argv[1]);

  15:  printf("cube root of %f is %f\n",x,pow(x,1.0/3.0));

  16:  getch();

  17:  }

Write a program to read two strings and display them sorted alphabetically

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  #include<string.h>

   4:  void main()

   5:  {

   6:  char str1[40];

   7:  char str2[40];

   8:  int n;

   9:  printf("Enter the first string:\n");

  10:  gets(str1);

  11:  printf("Enter the second string:\n");

  12:  gets(str2);

  13:  n=strcmp(str1,str2);

  14:      if(n==0)

  15:      {

  16:      printf("the strings are identical\n");

  17:      }

  18:      else

  19:      {

  20:      printf("if sorted alphabetically the strings will come in following order\n");

  21:      }

  22:      if(n<0)

  23:      {

  24:      puts(str1);

  25:      puts(str2);

  26:      }

  27:      if(n>0)

  28:      {

  29:      puts(str2);

  30:      puts(str1);

  31:      }

  32:  getch();

  33:  }

Write a program to read two strings and append second to first

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  #include<string.h>

   4:  void main()

   5:  {

   6:  char str1[40];

   7:  char str2[40];

   8:  printf("Enter the first string:\n");

   9:  gets(str1);

  10:  printf("Enter the second string:\n");

  11:  gets(str2);

  12:  strcat(str1,str2);

  13:  printf("String 1 is now:\n");

  14:  puts(str1);

  15:  getch();

  16:  }

Write a program that will read names of three students from the keyboard store them as array of strings

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  #include<string.h>

   4:  void main()

   5:  {

   6:  int i;

   7:  char sname[3][40];

   8:  char yourname[40];

   9:  for(i=0;i<3;i++)

  10:      {

  11:      printf("Enter the name of the student:\n");

  12:      gets(yourname);

  13:      strcpy(sname[i],yourname);

  14:      }

  15:  for(i=0;i<3;i++)

  16:  puts(sname[i]);

  17:  getch();

  18:  }

Write a program to read my number x and to evaluate x*x-2. use a function to evaluate x*x-2 and call this function through its pointer

#include<stdio.h>
#include<conio.h>
#include<math.h>
float expr(float);
void main()
{
float x,value;
printf("Enter the value of x ");
scanf("%f",&x);
value=(*expr)(x);
printf("value =%f\n",value);
getch();
}
float expr(float x)
{
return(x*x-2);
}