i'm trying to make it so that the program returns back to the login screen after creating an account instead of exiting the program. I tried but so far not working.Code:#include <stdio.h> #include <string.h> struct create_account { char username[16]; char pass[16]; char conf_pass[16]; }; struct login { char username[16]; char pass[16]; }; int main() { struct create_account c; struct login l; FILE *fp = NULL; char user[16]; char pass[16]; short int condition = 0; short int i = 0; short int j = 0; short int k = 0; char opt_no = 0; while(k = 0); { printf("\n**************ADMISSION*PROGRAM*FOR****************"); printf("\n********************STUDENTS***********************"); printf("\n\n"); printf("\n1.LOG IN"); printf("\n2.CREATE USER"); printf("\n3.EXIT PROGRAM"); printf("\nEnter Option No.:\t"); opt_no = getchar(); switch(opt_no) { case '1': printf("\nUsername:\t"); scanf("%s", l.username); printf("\nPassword:\t"); scanf("%s", l.pass); fp = fopen("user_account.txt", "r"); while(fscanf(fp, "%s\t%s", user, pass) == 2) { if(user == l.username && pass == l.pass) { printf("YES."); } } break; case '2': printf("\nEnter Desired Adiminisrator User Name:\t"); scanf("%s", c.username); FILE *fp = fopen("user_account.txt", "a"); fprintf(fp, "%s\t", c.username); fprintf(fp, "\t"); printf("(Enter Desired Password Not Less Than 8 Characters"); printf("\nAnd Not More Than 16 Characters.)"); while(condition == 0) { printf("\n\nPassword:\t\t"); scanf("%s", c.pass); j = strlen(c.pass); if(j < 8) { printf("\nError.Password is less than 8 characters."); } if(j > 16) { printf("\nError.Password is more than 16 characters."); } if(j >= 8 && j <= 16) { printf("Confirm Password:\t"); scanf("%s", c.conf_pass); i = strcmp(c.pass, c.conf_pass); if(i != 0) { printf("Error! Passwords do not match"); } if(i == 0) { condition = 1; fprintf(fp, "%s\n", c.pass); } fclose(fp); break; } case '3': k =1; break; } } } return 0; }