Question

Submit a well-commented C program.  

Create code.

That will build a random 8x8 2D array of small-case characters.

Demonstrate how it functions by printing out the result on your screen.

Add a function will print out a single line of the array. If the user enters a value between 0 and 7 to select to print out a single row of the original 2D array.   

            void printLine(char *,int);    // This is the prototype declaration

            void printLine(char myArr[][])     // This is the definition.

Note that L is the line to be printed.

Answer 1

#include <stdio.h>

#include <stdlib.h>

#include <time.h>

void printLine(char [][8],int);

int main(){

int n;

printf("Enter value:");

scanf("%d",&n);

srand(time(0));

char myArray[8][8];

for(int i=0;i<8;i++){

for(int j=0;j<8;j++){

myArray[i][j]=(rand() % (122 - 97 + 1)) + 97;

}

}

printLine(myArray,n);

return 0;

}

void printLine(char myArray[][8],int n){

if(n>=0 && n<=7){

for(int i=0;i<8;i++){

for(int j=0;j<8;j++){

printf("%c",myArray[i][j]);

}

}printf("\n");

}

}

The function prototype must be same as function defination otherise it gives error

so the prototype is

void printLine(char [][8],int);

then only the function definition will works