Question

Your C program will do the following :

Must use at least 2 function prototypes & definitions . You can also use repetitions , control structures . You re not allowed any type of global arrays, or global variables. You are only allowed to use 2 dimensional arrays.

1. In your main program, create a array of size 7 X 7.

2. Create a function that accepts the empty array. The function will initiate the to zero. Then, the function will populate the array with random number of 0’s and 1’s only. Use a random number generator to generate the 0’s and 1’s.

3. From main Display the 2 d array.

4. From main , pass the populated array to another function.

The purpose of the to do the following : a. Asks for two integer indices i and j (less or equal to n) or -1 .

b. Return the number of nonzero elements of the array that are adjacent to the i-th and j-th element of the array

c. repeat steps a and b until -1 is entered to exit the function.

5. Repeat steps 2 – 4 until the user terminates the program by entering N/n .  

  

You need to use the following libraries in order to generate the random number stdlib , stdio, and time libraries . you also need the srand(time(0)) in order to get a different random number every time you generate a number.

Finally , you need the command that generates the number and stores it in a variable .

• i-th row and j-column must be integers between 1 and 7 or -1 to terminate. Otherwise an error should be displayed.

• The program must be running until the user decides to terminated it by entering n.  

Answer 1

Here is the answer for your question in C Programming Language.

Kindly upvote if you find the answer helpful.

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CODE :

#include<stdio.h> #include<stdlib.h> #include<time.h> void populateArray(int[][7]); int nonZeroElements(int[][7]); void main(){    //Create an array of size 7 X 7    int array[7][7],i,j,nonZeros = 0;    char ch = "y",ignore;    populateArray(array);    printf("Generated 2D array with 0's and 1's: \n");    printf("====================================\n");    while(ch != 'n' && ch != 'N'){        for(i = 0;i<7;i++){            for(j = 0;j<7;j++)                printf("%d ",array[i][j]);            printf("\n");        }        nonZeros = nonZeroElements(array);        while(nonZeros != -1){            printf("Number of non Zeros are : ");            printf("%d \n",nonZeros);            nonZeros = nonZeroElements(array);        }          printf("\nDo you want to continue[Y/N]? ");        scanf("%c",&ignore);        scanf("%c",&ch);                      }    } void populateArray(int array[][7]){    srand(time(0));    int i,j;    //Initiate the array to 0    for(i = 0;i<7;i++)        for(j = 0;j<7;j++){            array[i][j] = 0;        }    //Populate the array with 0's and 1's    for(i = 0;i<7;i++)        for(j = 0;j<7;j++){            array[i][j] = (rand() % 2);        } } int nonZeroElements(int array[][7]){    int i,j,k,m,h,count = 0;    printf("Enter i and j(1 to 7) indices values(-1 to stop): ");    scanf("%d%d",&i,&j);    if(i == -1 || j == -1)        return -1;    if((i <= 0 || i > 7) || (j <=0 && j > 7)){        printf("Invalid index error");    }else{        count = 0;        i = i-1;        j = j-1;        if(i == 0){            if(j >= 0 && j<6){                if(j == 0)                    h = j;                  else                    h = (j-1);                for(k = i;k<=i+1;k++){                    for(m = h;m<=(j+1);m++){                        if(k != i || m != j){                            if(array[k][m] == 1)                                count++;                        }                    }                }            }else if(j == 6){                for(k = i;k<=(i+1);k++){                    for(m = j;m>=(j-1);m--){                        if(k != i || m != j){                            if(array[k][m] == 1)                                count++;                        }                    }                }            }        }else if(i == 6){            if(j >= 0 && j<6){                if(j == 0)                    h = j;                  else                    h = (j-1);                for(k = i;k>=(i-1);k--){                    for(m =h;m<=(j+1);m++){                        if(k != i || m != j){                            if(array[k][m] == 1)                                count++;                        }                    }                }            }else if(j == 6){                for(k = i;k>=(i-1);k--){                    for(m = j;m>=(j-1);m--){                        if(k != i || m != j){                            if(array[k][m] == 1)                                count++;                        }                    }                }            }        }else{                      for(k = (i-1);k<=(i+1);k++){                for(m = (j-1);m<=(j+1);m++){                                      if(k != i || m != j){                        if(array[k][m] == 1)                            count++;                    }                }            }        }    }    return count; }

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SCREENSHOTS :

Please see the screenshots of the code below for the indentations of the code.

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OUTPUT :

Any doubts regarding this can be explained with pleasure :)