Question

I've been at this for a while and I can't seem to crack this.

5. Download and compile this C code. What happens? $include # include <stdio.h < t dlib . h> int main) int i; int t; srand (time (NULL)) for (i-1 ; i 5000; i++) allilrand / ap the txo array / for (i=0 ; ic#5000; i++) a2[i] = t; /Print the arrays / for (i=0 ; í例000; i++) free (a1); free (a2): Type the program and run it. Save your program as queation5FirstlnitialLastName.c Modify the program so that the program will prompt user for the array size and allocate the correct amount of memory according to the user input. Change the random numbers so that it only generates numbers from 0-600 (not including 600). Submit this program to csc292 as your second program a) b) c)

Answer 1

a) The program is output is swapping of a1 array i.e., random numbers and a2 iterative numbers(0,1,2,3,...).

suppose a1 have {476774,4653,344454,44363,34563,3443}

a2 have {0,1,2,3,4,5}

after executing:

a1 : {0,1,2,3,4,5}

a2 : {476774,4653,344454,44363,34563,3443}

b)

#include<stdio.h>

#include<stdlib.h>

int main(){

int i;

int t;

int n;

printf("Enter array size: ");

scanf("%d", &n);

int *a1 = (int *)malloc(sizeof(int)*n);

int *a2 = (int *)malloc(sizeof(int)*n);

srand(time(NULL));

for(i=0; i<=n; i++){

a1[i] = rand()%600;

a2[i] = i;

}

for(i=0; i<=n; i++){

t= a1[i];

a1[i] = a2[i];

a2[i] = t;

}

for(i=0; i<=n; i++){

printf("%d : %d\n", a1[i], a2[i]);

}

free(a1);

free(a2);

}

[rkv-sdc@localhost θ9θ32018]s ./a.out Enter array size: 5 0 383 1 154 2 511 3 : 97 4 : 189 5: 269 [rkv-sdc@localhost 9 32018]$ י