/* File: maxabs.c Programmer: Programmer Name Date: Current Date This program reads in a sequence of integers until an end of file. Among the numbers read, the program determines the largest absolute value.*/#include <stdio.h>int absolute(int n);main(){ int largest = 0, n, flag; printf("***Largest Absolute Integer***\n\n"); printf("Type integers, EOF to quit: " "^Z for DOS, ^D for Unix\n"); flag = scanf("%d", &n); while (flag != EOF) { if (absolute(n) > largest) largest = absolute(n); flag = scanf("%d", &n); } printf("Largest absolute value = %d\n", largest);}/* Function returns the absolute value of n */int absolute(int n){ if (n < 0) return -n; else return n;}/* File: niceday.c Programmer: Programmer Name Date: Current Date This program counts the number of nice days in a set of high temperature data.*/int nice_day(int temp);void print_results(int nice, int bad, int temp_sum);main(){ /* declarations */ int temperature, /* daily temperature */ total = 0, /* cumulative total */ num_nice_days = 0, num_bad_days = 0; /* print title and prompt */ printf("***Count Nice Days***\n\n"); printf("Type daily high temperature readings (0 to quit): "); /* read the first temperature */ scanf("%d", &temperature); while (temperature != 0) { /* process one temperature */ if ( nice_day(temperature)) num_nice_days = num_nice_days + 1; else num_bad_days = num_bad_days + 1; /* accumulate total of temperatures */ total = total + temperature; /* read next temperature */ scanf("%d", &temperature); } print_results(num_nice_days, num_bad_days, total);}/* File: niceday.h Programmer: Programmer Name This file contains the definitions of macros and prototypes for functions used by the niceday program.*/#define TOO_COLD 80#define TOO_HOT 90#define HOT_DAY(t) ((t) > TOO_HOT)#define COLD_DAY(t) ((t) < TOO_COLD)#define ANY_DAYS(n,b) (((n) + (b)) > 0)int nice_day(int temp);void print_results(int nice, int bad, int temp_sum);/* File: niceday2.c Programmer: Programmer Name Date: Current Date This program counts the number of nice days in a set of high temperature data.*/#include <stdio.h>#include "tfdef.h"#include "niceday.h"main(){ /* declarations */ int temperature, /* daily temperature */ total = 0, /* cumulative total */ num_nice_days = 0, num_bad_days = 0; /* print title and prompt */ printf("***Count Nice Days***\n\n"); printf("Type daily high temperature readings (0 to quit): "); /* read the first temperature */ scanf("%d", &temperature); while (temperature != 0) { /* process one temperature */ if ( nice_day(temperature)) num_nice_days = num_nice_days + 1; else num_bad_days = num_bad_days + 1; /* accumulate total of temperatures */ total = total + temperature;#ifdef DEBUGprintf("debug: %d temps read, total = %d\n", num_nice_days + num_bad_days, total);#endif /* read next temperature */ scanf("%d", &temperature); } print_results(num_nice_days, num_bad_days, total);}/* Function to test for a nice day given the temperature */int nice_day(int temp){ if( COLD_DAY(temp)) return FALSE; if( HOT_DAY(temp)) return FALSE; return TRUE;}/* Function to print results given number of nice and bad days *//* and total of temperatures */void print_results( int nice_days, int bad_days, int total){ float average_temp; printf("There were %d nice days and %d bad days\n", nice_days, bad_days); if ( ANY_DAYS(nice_days,bad_days)) { average_temp = (float) total / (float) (nice_days + bad_days); printf("The average temperature for %d days was %f\n", nice_days + bad_days, average_temp); }}/* File: pay5.c Programmer: Programmer Name Date: Current Date The program gets payroll data, calculates pay, and prints out the results for a number of people. A separate function is used to calculate total pay.*/#define REG_LIMIT 40.0#define OT_FACTOR 1.5main(){ /* declarations */ int id_number; float hours_worked, rate_of_pay, total_pay; float calc_pay(float hours, float rate); /* print title */ printf("***Pay Calculation***\n"); /* initialize loop variables */ printf("\nType ID Number, zero to quit: "); scanf("%d", &id_number); while (id_number > 0) { /* read data into variables */ printf("Hours Worked: "); scanf("%f", &hours_worked); printf("Hourly Rate: "); scanf("%f", &rate_of_pay); /* calculate pay */ total_pay = calc_pay(hours_worked, rate_of_pay); /* print data and results */ printf("\nID Number = %d\n", id_number); printf("Hours Worked = %f, Rate of Pay = $%6.2f\n", hours_worked, rate_of_pay); printf("Total Pay = $%10.2f\n", total_pay); /* update loop variables */ printf("\nType ID Number, zero to quit: "); scanf("%d", &id_number); }}/* Function calculates and returns total pay */float calc_pay(float hours, float rate){ float regular, overtime, total;printf("\ndebug:entering calc_pay(): hours = %f, rate = %f\n", hours, rate); if (hours > REG_LIMIT) { regular = REG_LIMIT * rate; overtime = OT_FACTOR * rate * (hours - REG_LIMIT); } else { regular = hours * rate; overtime = 0; } total = regular + overtime;printf("debug:returning from calc_pay(): %f\n", total); return total;}/* File: tfdef.h Programmer: Programmer Name This file contains the definitions of TRUE and FALSE*/#define TRUE 1#define FALSE 0