nclude nclude nclude nclude t i; ar n=1,username[16], password[30],ch; id welcome() system("@cls||clear"); printf("\t\tWECOME TO MY SITE\n"); + main() while(n<=3) { welcome(); printf("\n\nLOGIN HERE!"); printf("\n\nUSERNAME : "); scanf ("%s",&username); printf("PASSWORD: "); for(i=0;i<16;i++) { ch = getch(); if(ch==13) { password[i]='\0'; break; password[i]=ch; printf("*"); password[i]='\0'; printf("\n\n"); system("pause"); if(strcmp(username, "rolan")==0) { if(strcmp(password, "12345")==0) welcome(); printf("\n\NYOU'VE LOGIN SUCCESSFULLY!"); break; } else

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text

#include<stdio.h> #include<string.h> #include<conio.h> #include<stdlib.h> int i; char n=1,username[16],password[ 30],ch; void welcome() { system ("@cls||clear"); printf("\t\tWECOME TO MY SITE\n"); } int main() { while(n<=3) { welcome(); printf("\n\NLOGIN HERE!"); printf("\n\nUSERNAME : "); scanf ("%s",&username); printf("PASSWORD: "); for (i=0;i<16;i++) { ch = getch(); if(ch==13) { password[i]='\0'; break; password[i]=ch; printf("*"); password[i]='\0'; printf("\n\n"); system("pause"); if(strcmp(username, "rolan")==0) if(strcmp(password, "12345")==0) { welcome(); printf("\n\NYOU'VE LOGIN SUCCESSFULLY!"); break; else welcome(); printf("\n\nWRONG PASSWORD. You have %d attempt/s left...",3-n); else welcome(); printf("\n\NUSER DOESN'I EXIST. You have %d attempt/s left...",3-n); getch(); n++; if(n==4) { welcome(); printf("\nSORRY! YOU CAN'T LOGIN."); break; getch(); } }

#include<stdio.h>
#include<string.h>
#include<conio.h>
#include<stdlib.h>
int i;
char n=1,username[16],password[ 30],ch;
void welcome()
{
system ("@cls||clear");
printf("\t\tWECOME TO MY SITE\n");
}
int main()
{
while(n<=3)
{
welcome();
printf("\n\NLOGIN HERE!");
printf("\n\nUSERNAME : ");
scanf ("%s",&username);
printf("PASSWORD: ");
for (i=0;i<16;i++)
{
ch = getch();
if(ch==13)
{
password[i]='\0';
break;
password[i]=ch;
printf("*");
password[i]='\0';
printf("\n\n");
system("pause");
if(strcmp(username, "rolan")==0)
if(strcmp(password, "12345")==0)
{
welcome();
printf("\n\NYOU'VE LOGIN SUCCESSFULLY!");
break;
else
welcome();
printf("\n\nWRONG PASSWORD. You have %d attempt/s left...",3-n);
else
welcome();
printf("\n\NUSER DOESN'I EXIST. You have %d attempt/s left...",3-n);
getch();
n++;
if(n==4)
{
welcome();
printf("\nSORRY! YOU CAN'T LOGIN.");
break;
getch();
}
}
Transcribed Image Text:#include<stdio.h> #include<string.h> #include<conio.h> #include<stdlib.h> int i; char n=1,username[16],password[ 30],ch; void welcome() { system ("@cls||clear"); printf("\t\tWECOME TO MY SITE\n"); } int main() { while(n<=3) { welcome(); printf("\n\NLOGIN HERE!"); printf("\n\nUSERNAME : "); scanf ("%s",&username); printf("PASSWORD: "); for (i=0;i<16;i++) { ch = getch(); if(ch==13) { password[i]='\0'; break; password[i]=ch; printf("*"); password[i]='\0'; printf("\n\n"); system("pause"); if(strcmp(username, "rolan")==0) if(strcmp(password, "12345")==0) { welcome(); printf("\n\NYOU'VE LOGIN SUCCESSFULLY!"); break; else welcome(); printf("\n\nWRONG PASSWORD. You have %d attempt/s left...",3-n); else welcome(); printf("\n\NUSER DOESN'I EXIST. You have %d attempt/s left...",3-n); getch(); n++; if(n==4) { welcome(); printf("\nSORRY! YOU CAN'T LOGIN."); break; getch(); } }
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