Question

C language. I use nano text editor. Make a C program to do one of two things: either print all of the parameters passed to it, or, if one of those parameters is "-h", print a few lines about what the program does. That is, if one of the parameters is "-h", it should not print the parameters, only the "help" message.

Answer 1

Please find my code:

#include <stdio.h>

int main(){

   // declaring an array of size 10 and initializing with 0
   int arr[10] = {0};

   int num = 0;

   printf("Enter integers in range 0-9 (-1 to stop)\n");
   scanf("%d", &num); // read first input
   while(num != -1){ // iterate if user input is not -1

       arr[num] = arr[num]+1; // increasing the count
       scanf("%d", &num); // read next input

   }

   // iterating arr and print count of each number
   int i;
   for(i=0; i<10; i++){
       printf("The number %d occured %d times\n",i, arr[i]);
   }

   return 0;
}

secondweek gcc printparams.c → secondweek ./a.out pravesh 5 Alex C -h hoili pravesh 5 Alex help hoili secondweek 1