#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
int main()
{
    printf("\t//*****************St.Jago High School******************\\ \n\n");
    printf("\t------------Courtney Athlone St.Michael Reid---------------\n\n");
      printf("\t^^^^^^^^^Computer Science IA-Pay Roll System^^^^^^^^^\n\n");
    char fname[50];
    char lname[20];
    printf("Enter the employee's First Name:\n");
    scanf("%s",&fname[50]);
    printf("Enter the employee's Last Name:\n");
    scanf("%s",&lname[20]);
}
int add_hours() 
{
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
    int hours;
    int mo, tu, we, th, fr;
    printf("Enter daily hours for Monday:\n");
    scanf("%d",&mo);
    printf("Enter daily hours for Tuesday:\n");
    scanf("%d",&tu);
    printf("Enter daily hours for Wednesday:\n");
    scanf("%d",&we);
    printf("Enter daily hours for Thursday:\n");
    scanf("%d",&th);
    printf("Enter daily hours for Friday:\n");
    scanf("%d",&fr);
    hours=mo+tu+we+th+fr;
    printf("\nThe weekly hours are:%d\n",hours);

    printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
    printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
}
int salary_select;{
    int education_tax;
    int NIS_tax;
    int NHT_tax;
    int medical_dental;
    int hours;
    int salary_deduct=0;salary_deduct>20;salary_deduct++;
    int normal_pay;
    int over_time; /*Overtime pay increases the pay rate from $20 to $25*/
    int bonus=0;bonus>1;bonus++; /* Adds $3000 to workers going over 70 hours*/
    normal_pay=hours*20;
    over_time=(hours-60)*40+normal_pay;
    bonus=over_time+3000;
    salary_deduct=hours*20-hours*10;
    if(hours<=40)
    printf("\nThe employee is slacking and salary will be deducted!\nThe gross pay is:$%d dollars\n",salary_deduct);
    else if(hours<=60)
    printf("\nThe employee will get normal pay\nThe gross pay is:$%d dollars\n",normal_pay);
    else if(hours<=70)
    printf("\nThe employee is working over time and will get overtime pay\nThe gross pay is:$%d dollars\n",over_time);
    else
    printf("\nTHE EMPLOYEE IS WORKING EXTREMELY HARD AND WILL GET A BONUS ON HIS PAY!\nThe gross pay is:$%d\n",bonus);
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");    
}
int tax;{
    int normal_pay;
    int over_time; /*Overtime pay increases the pay rate from $20 to $25*/
    int bonus=0;bonus>1;bonus++; /* Adds $3000 to workers going over 70 hours*/
    int salary_deduct=0;salary_deduct>20;salary_deduct++;
    int hours;
    int education_tax;
    int NIS_tax;
    int NHT_tax;
    int medical_dental;
    education_tax=hours*20*.06;
    printf("Education tax of %6:$-%d\n",education_tax);
    NHT_tax=hours*20*.1;
    printf("NHT tax of %10:$-%d\n",NHT_tax);
    NIS_tax=hours*20*.05;
    printf("NIS tax of %5:$-%d\n",NIS_tax);
    medical_dental=hours*20*.05;
    printf("Medical/dental of %5:$-%d\n",medical_dental);
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
}
int ntpay;{
    int normal_pay;
    int over_time; /*Overtime pay increases the pay rate from $20 to $25*/
    int bonus=0;bonus>1;bonus++; /* Adds $3000 to workers going over 70 hours*/
    int education_tax;
    int NIS_tax;
    int NHT_tax;
    int medical_dental;
    int salary_deduct=0;salary_deduct>20;salary_deduct++;
    int hours;
    int netpay;
    int netpay1;
    int netpay2;
    int netpay3;
    netpay=salary_deduct-(NHT_tax+education_tax+NIS_tax+medical_dental);
    netpay1=normal_pay-(NHT_tax+education_tax+NIS_tax+medical_dental);
    netpay2=over_time-(NHT_tax+education_tax+NIS_tax+medical_dental);
    netpay3=bonus-(NHT_tax+education_tax+NIS_tax+medical_dental);
   if(hours<=40)
    printf("The net pay is:$%d\n",netpay);
    else if(hours<=60)
    printf("The net pay is:$%d\n",netpay1);
    else if(hours<=70)
    printf("The net pay is:$%d\n",netpay2);
    else
    printf("The net pay is:$%d\n",netpay3);
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
}
}
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
int main()
{
    printf("\t//*****************St.Jago High School******************\\ \n\n");
    printf("\t------------Courtney Athlone St.Michael Reid---------------\n\n");
      printf("\t^^^^^^^^^Computer Science IA-Pay Roll System^^^^^^^^^\n\n");
    char fname[50];
    char lname[20];
    printf("Enter the employee's First Name:\n");
    scanf("%s",&fname[50]);
    printf("Enter the employee's Last Name:\n");
    scanf("%s",&lname[20]);
}
int add_hours() 
{
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
    int hours;
    int mo, tu, we, th, fr;
    printf("Enter daily hours for Monday:\n");
    scanf("%d",&mo);
    printf("Enter daily hours for Tuesday:\n");
    scanf("%d",&tu);
    printf("Enter daily hours for Wednesday:\n");
    scanf("%d",&we);
    printf("Enter daily hours for Thursday:\n");
    scanf("%d",&th);
    printf("Enter daily hours for Friday:\n");
    scanf("%d",&fr);
    hours=mo+tu+we+th+fr;
    printf("\nThe weekly hours are:%d\n",hours);

    printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
    printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
}
int salary_select()
{
    int education_tax;
    int NIS_tax;
    int NHT_tax;
    int medical_dental;
    int hours;
    int salary_deduct=0;salary_deduct>20;salary_deduct++;
    int normal_pay;
    int over_time; /*Overtime pay increases the pay rate from $20 to $25*/
    int bonus=0;bonus>1;bonus++; /* Adds $3000 to workers going over 70 hours*/
    normal_pay=hours*20;
    over_time=(hours-60)*40+normal_pay;
    bonus=over_time+3000;
    salary_deduct=hours*20-hours*10;
    if(hours<=40)
    printf("\nThe employee is slacking and salary will be deducted!\nThe gross pay is:$%d dollars\n",salary_deduct);
    else if(hours<=60)
    printf("\nThe employee will get normal pay\nThe gross pay is:$%d dollars\n",normal_pay);
    else if(hours<=70)
    printf("\nThe employee is working over time and will get overtime pay\nThe gross pay is:$%d dollars\n",over_time);
    else
    printf("\nTHE EMPLOYEE IS WORKING EXTREMELY HARD AND WILL GET A BONUS ON HIS PAY!\nThe gross pay is:$%d\n",bonus);
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");    
}
int tax()
{
    int normal_pay;
    int over_time; /*Overtime pay increases the pay rate from $20 to $25*/
    int bonus=0;bonus>1;bonus++; /* Adds $3000 to workers going over 70 hours*/
    int salary_deduct=0;salary_deduct>20;salary_deduct++;
    int hours;
    int education_tax;
    int NIS_tax;
    int NHT_tax;
    int medical_dental;
    education_tax=hours*20*.06;
    printf("Education tax of %6:$-%d\n",education_tax);
    NHT_tax=hours*20*.1;
    printf("NHT tax of %10:$-%d\n",NHT_tax);
    NIS_tax=hours*20*.05;
    printf("NIS tax of %5:$-%d\n",NIS_tax);
    medical_dental=hours*20*.05;
    printf("Medical/dental of %5:$-%d\n",medical_dental);
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
}
int ntpay()
{
    int normal_pay;
    int over_time; /*Overtime pay increases the pay rate from $20 to $25*/
    int bonus=0;bonus>1;bonus++; /* Adds $3000 to workers going over 70 hours*/
    int education_tax;
    int NIS_tax;
    int NHT_tax;
    int medical_dental;
    int salary_deduct=0;salary_deduct>20;salary_deduct++;
    int hours;
    int netpay;
    int netpay1;
    int netpay2;
    int netpay3;
    netpay=salary_deduct-(NHT_tax+education_tax+NIS_tax+medical_dental);
    netpay1=normal_pay-(NHT_tax+education_tax+NIS_tax+medical_dental);
    netpay2=over_time-(NHT_tax+education_tax+NIS_tax+medical_dental);
    netpay3=bonus-(NHT_tax+education_tax+NIS_tax+medical_dental);
   if(hours<=40)
   {
    printf("The net pay is:$%d\n",netpay);
   }
    else if(hours<=60)
   {
    printf("The net pay is:$%d\n",netpay1);
   }    
   else if(hours<=70)
   {
    printf("The net pay is:$%d\n",netpay2);
}
    else
    {
    printf("The net pay is:$%d\n",netpay3);
}
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
printf("\t^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");

}

i try to do it again but after enterring lastname the program stop please help me

You haven't told the program what to do after the lastname is entered, so when it reaches the end of Main it ends.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
int main()
{
    printf("\t//*****************St.Jago High School******************\\ \n\n");
    printf("\t------------Courtney Athlone St.Michael Reid---------------\n\n");
      printf("\t^^^^^^^^^Computer Science IA-Pay Roll System^^^^^^^^^\n\n");
    int hours;
    int mo, tu, we, th, fr;
    int salary_deduct=0;salary_deduct>20;salary_deduct++;
    int normal_pay;
    int over_time; /*Overtime pay increases the pay rate from $20 to $25*/
    char fname[50];
    char lname[20];
    int bonus=0;bonus>1;bonus++; /* Adds $3000 to workers going over 70 hours*/
    int education_tax;
    int NIS_tax;
    int NHT_tax;
    int medical_dental;
    int netpay;
    int netpay1;
    int netpay2;
    int netpay3;
    {
    printf("Enter the employee's First Name:\n");
    scanf("%s",&fname[50]);
    printf("Enter the employee's Last Name:\n");
    scanf("%s",&lname[20]);
    printf("Enter daily hours for Monday:\n");
    scanf("%d",&mo);
    printf("Enter daily hours for Tuesday:\n");
    scanf("%d",&tu);
    printf("Enter daily hours for Wednesday:\n");
    scanf("%d",&we);
    printf("Enter daily hours for Thursday:\n");
    scanf("%d",&th);
    printf("Enter daily hours for Friday:\n");
    scanf("%d",&fr);
    }
    {
    hours=mo+tu+we+th+fr;
    printf("\nThe weekly hours are:%d\n",hours);
    normal_pay=hours*20;
    over_time=(hours-60)*40+normal_pay;
    bonus=over_time+3000;
    salary_deduct=hours*20-hours*10;
    }
{
    if(hours<=40)
    printf("\nThe employee is slacking and salary will be deducted!\nThe gross pay is:$%d dollars\n",salary_deduct);
    else if(hours<=60)
    printf("\nThe employee will get normal pay\nThe gross pay is:$%d dollars\n",normal_pay);
    else if(hours<=70)
    printf("\nThe employee is working over time and will get overtime pay\nThe gross pay is:$%d dollars\n",over_time);
    else
    printf("\nTHE EMPLOYEE IS WORKING EXTREMELY HARD AND WILL GET A BONUS ON HIS PAY!\nThe gross pay is:$%d\n",bonus);
}
{
    education_tax=hours*20*.06;
    printf("Education tax of %6:$-%d\n",education_tax);
    NHT_tax=hours*20*.1;
    printf("NHT tax of %10:$-%d\n",NHT_tax);
    NIS_tax=hours*20*.05;
    printf("NIS tax of %5:$-%d\n",NIS_tax);
    medical_dental=hours*20*.05;
    printf("Medical/dental of %5:$-%d\n",medical_dental);
}
{
    netpay=salary_deduct-(NHT_tax+education_tax+NIS_tax+medical_dental);
    netpay1=normal_pay-(NHT_tax+education_tax+NIS_tax+medical_dental);
    netpay2=over_time-(NHT_tax+education_tax+NIS_tax+medical_dental);
    netpay3=bonus-(NHT_tax+education_tax+NIS_tax+medical_dental);
    if(hours<=40)
    printf("The net pay is:$%d\n",netpay);
    else if(hours<=60)
    printf("The net pay is:$%d\n",netpay1);
    else if(hours<=70)
    printf("The net pay is:$%d\n",netpay2);
    else
    printf("The net pay is:$%d\n",netpay3);
}
    return 0;
}

this is what i do now and now its stop after enterring daily hours for friday,tnx for replying tinstaa Im very happy that someone like you are helping me,so can you help me until i fix my codes because i need it tommorrow,and i need to defense it,im thankful to you very much

It's not stopping really, you don't have anything to keep the console open, so when it finishes it closes. Try this scanf("%d",&mo); just before line 84.

other than removing the unsupported conio.h from the code I was able to run the code completely without stopping at accepting input for friday... mayhaps you want to remove those unnecessary curly braces

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