Thread: menu driven program

ok, task is to create a menu driven program that asks for 5 integers and asks if you want to find sum, average, largest, or smallest. I have created some of the program but i am not lost. how can i get this to run? this is my current code:

insert

Code:

#include <stdio.h>
#include <stdlib.h>


//Function Declarations
int option;
int small(int u, int w, int x, int y, int z);
int large(int u, int w, int x, int y, int z);
int sum(int u, int w, int x, int y, int z);
int avg(int u, int w, int x, int y, int z);


    int one;
    int two;
    int three;
    int four;
    int five;


int main(void)
{
//Local Declarations




//Statements
    printf  ("\t***********************");
    printf("\n\t*        MENU          ");
    printf("\n\t*                     *");
    printf("\n\t*   1. SMALLEST       *");
    printf("\n\t*   2. LARGEST        *");
    printf("\n\t*   3. SUM            *");
    printf("\n\t*   4. AVERAGE        *");
    printf("\n\t)**********************");


    printf("\n Please type your choice: ");
    scanf ("%d", &option);
    return option;


    printf("\n Please enter 5 integers:");
    scanf ("%d %d %d %d %d", &one, &two, &three, &four, &five);


    switch(option)
        {
        case 1: small(one, two, three, four, five);
                break;
        case 2: large(one, two, three, four, five);
                break;
        case 3: sum(one, two, three, four, five);
                break;
        case 4: avg(one, two, three, four, five);
        }
    return 0;
}   // main


int small(int u, int w, int x, int y, int z)
{
    if (one<two && one<three && one<four && one<five);
        printf("%d", one);


    else if (two<one && two<three && two<four && two<five);
        printf("%d", two);


    else if (three<one && three<two && three<four && three<five);
        printf("%d", three);


    else if (four<one && four<two && four<three && four<five);
        printf("%d", four);


    else
        printf("%d", five);
}


int large(int u, int w, int x, int y, int z)
{
    if (one>two && one>three && one>four && one>five);
        printf("%d", one);


    else if (two>one && two>three && two>four && two>five);
        printf("%d", two);


    else if (three>one && three>two && three>four && three>five);
        printf("%d", three);


    else if (four>one && four>two && four>three && four>five);
        printf("%d", four);


    else
        printf("%d", five);
}


int sum(int u, int w, int x, int y, int z)
{
    return(u+w+x+y+z);
}


int avg(int u, int w, int x, int y, int z)
{
    return((u+w+x+y+z)/5);
}

and current errors:

else without previous if for function small & large.

thanks for any help in advance!

Code:

if (one<two && one<three && one<four && one<five);

Get rid of all the semicolons at the end of if and else if lines.

Originally Posted by Salem

> if (one<two && one<three && one<four && one<five);
Remove the ; at the end of every one of your conditions.

thanks!! i also had to remove the

option return;

ok it runs fine but the sum and average functions dont work for some reason.... it doesnt return anything. any ideas?

It returns something, but you're not printing that result. Try putting printf("sum is %d\n", sum(...)) in your case statement in main.

Look at your functions large() and small(). Currently, whenever you pass it something, it isn't used.

So get rid of the globals and start passing things for a reason.

try taking input in an array so that functions like large can be simplified..translates to lesser chances of a mistake and less typing :|

Code:

int input[5];

scanf ("%d %d %d %d %d", input,input + 1,input + 2,input + 3,input + 4);
 

int large(int* input)
{
	int i,max = input[0];
	for(i=0;i<5;i++)
	{
		if(input[i] > max)
		max = input[i];
	
	}	    
printf("%d",&max);
}

thanks everyone, i got it all working properly!

how do i get the program to stop after it prints "INVALID CHOICE"?

Code:

/*
This is a menu driven program that prompts a user for either the smallest, largest, sum, or average for a group of 5 integers
Written by: Thomas Garrison
Date: February 27, 2011
*/


#include <stdio.h>
#include <stdlib.h>


// Function Declarations
int option;
int menu(void);
int small(int u, int w, int x, int y, int z);
int large(int u, int w, int x, int y, int z);
int sum(int u, int w, int x, int y, int z);
int avg(int u, int w, int x, int y, int z);


int a;
int b;


int one;
int two;
int three;
int four;
int five;


int main(void)
{


// Statements
    option= menu();
    printf("\n Please enter 5 integers:");
    scanf ("%d %d %d %d %d", &one, &two, &three, &four, &five);


    switch(option)
        {
        case 1: small(one, two, three, four, five);
                break;
        case 2: large(one, two, three, four, five);
                break;
        case 3: sum(one, two, three, four, five);
                break;
        case 4: avg(one, two, three, four, five);
        }
    return 0;
}   // main


// Functions
 int menu(void)
{
    // Local Declarations
    int option;
    // Statements
    printf  ("\t***********************");
    printf("\n\t*        MENU          ");
    printf("\n\t*                     *");
    printf("\n\t*   1. SMALLEST       *");
    printf("\n\t*   2. LARGEST        *");
    printf("\n\t*   3. SUM            *");
    printf("\n\t*   4. AVERAGE        *");
    printf("\n\t)**********************");
    printf("\n Please type your choice: ");
    scanf ("%d", &option);
    if (option>4)
    {
        printf("INVALID CHOICE");
    }
    return option;
}


int small(int u, int w, int x, int y, int z)
{
    // Statements
    if (one<two && one<three && one<four && one<five)
        printf("%d", one);


    else if (two<one && two<three && two<four && two<five)
        printf("%d", two);


    else if (three<one && three<two && three<four && three<five)
        printf("%d", three);


    else if (four<one && four<two && four<three && four<five)
        printf("%d", four);


    else
        printf("%d", five);
}


int large(int u, int w, int x, int y, int z)
{
    //Statements
    if (one>two && one>three && one>four && one>five)
        printf("%d", one);


    else if (two>one && two>three && two>four && two>five)
        printf("%d", two);


    else if (three>one && three>two && three>four && three>five)
        printf("%d", three);


    else if (four>one && four>two && four>three && four>five)
        printf("%d", four);


    else
        printf("%d", five);
}


int sum(int u, int w, int x, int y, int z)
{
    // Statements
    int a = one + two + three + four + five;
    printf("%d", a);
    return(0);
}


int avg(int u, int w, int x, int y, int z)
{
    // Statements
    int b = (one + two + three + four + five)/5;
    printf("%d", b);
    return(0);
}

its due in an hour....

Right after you print "INVALID CHOICE", you need to exit: exit(3): cause normal process termination - Linux man page.

ok but the page you are referring to does not operate.

nevermind, i got it! i just used exit(0);
thanks a lot!