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max and min

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Join Date: Nov 2006

Posts: 22

Reputation: mr.cool is an unknown quantity at this point

Solved Threads: 1

mr.cool

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Newbie Poster

max and min

Jan 7th, 2008

hi, i need help with how to find the max number and min number from an array. there are 31 numbers, i know that i am suppose to use a for loop to do this and this is what i got so far
array is inputed by user

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 C++ Syntax (Toggle Plain Text) 
#include <iostream.h>
int main ()
{
   int temp[31];
   for(int i=0;i<31;i++)
   {
       cout<<"ENTER THE TEMPERATURE FOR THE MONTH OF DECEMBER"<<endl;
       cin>>temp[i];
    }
   for(i=0;i<31;i++)
   {
      if(temp[i]>temp[i+1])
#include <iostream.h>
int main ()
{
   int temp[31];
   for(int i=0;i<31;i++)
   {
       cout<<"ENTER THE TEMPERATURE FOR THE MONTH OF DECEMBER"<<endl;
       cin>>temp[i];
    }
   for(i=0;i<31;i++)
   {
      if(temp[i]>temp[i+1])

this is where im stuck, i don't know what to do next. i need to find the max and min so now i just need to find a way to swap the order of the array so later on i can just cout the first and last element of the array to show the max and min.

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Join Date: Oct 2006

Posts: 143

Reputation: venomlash is an unknown quantity at this point

Solved Threads: 2

venomlash

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Junior Poster

Re: max and min

Jan 7th, 2008

What I would do is this instead of the "read" loop:

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 C++ Syntax (Toggle Plain Text) 
int tmax, tmin;
 
tmax=temp[0];
tmin=temp[0];
 
for(int i=0; i<31; i++){
    if(temp[i]>tmax){
        tmax=temp[i];
    }
    if(temp[i]<tmin){
        tmin=temp[i];
    }
}
cout<<"The maximum temperature is "<<tmax<<".\n";
cout<<"The minimum temperature is "<<tmin<<".\n";
int tmax, tmin;

tmax=temp[0];
tmin=temp[0];

for(int i=0; i<31; i++){
    if(temp[i]>tmax){
        tmax=temp[i];
    }
    if(temp[i]<tmin){
        tmin=temp[i];
    }
}
cout<<"The maximum temperature is "<<tmax<<".\n";
cout<<"The minimum temperature is "<<tmin<<".\n";

Do you see where I'm going with this?

Last edited by venomlash; Jan 7th, 2008 at 9:41 pm. Reason: Clarify

Beware of the Rancor. I'm not kidding.
If it doesn't compile, try saying "By the power of MegaMan!!!" <this has kinda worked for me, actually...>
Scotland is NOT North Britain, Glasgow does NOT rhyme with "cow", and Robbie Burns is...well, if you don't already know who he was, you're kinda screwed.

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Join Date: Oct 2006

Posts: 143

Reputation: venomlash is an unknown quantity at this point

Solved Threads: 2

venomlash

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Junior Poster

Re: max and min

Jan 7th, 2008

Writing an array-sorting algorithm has been the bane of intro-C++ courses since the language was invented, I think. Being a hobbyist, I try to avoid having to sort. If you just need the max and min, what I posted should work fine. If not, ask someone more experienced.