finding the average using an array?
hi i need help finding the average using numbers from an array. this is what i have so far. please help. thank you.
the problem is on line 30 the formula on how to find the average.
it keeps telling me that: no math for 'operator+=' in etc...
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#include <iostream>
#include <cmath>
#include <string>
#include <iomanip>
using namespace std;
int main()
{
cout << fixed;
string integers[21];
float nums;
float result = 0;
float average = 0;
cout << "How many numbers do you want? (maz 20)" << endl;
cin >> nums;
if (nums > 20)
{
cout << "Invalid size. Ending." << endl;
return 0;
}
for (int counter = 0; counter < nums; counter++)
{
cout << "Enter value " << counter << ":" << endl;
cin >> integers[counter];
}
for (int i = 0; i < 20; i++)
{
result+=integers[i]
average = result / nums;
cout << "Average: " << setprecision(1) << average << endl;
}
cout << "You entered: " << endl;
for (int x = 0; x < 20; x++)
{
cout << integers[x] << endl;
}
}
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Last edited on
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string int integers[21];
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Last edited on
i would do this cause you only want to loop your addition.
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for (int i = 0; i < 20; i++)
{
result+=integers[i]
}
average = result / nums;
cout << "Average: " << setprecision(1) << average << endl;
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or do it in your counter and not do a second for loop.
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for (int counter = 0; counter < nums; counter++)
{
cout << "Enter value " << counter << ":" << endl;
cin >> integers[counter];
result+=integers[counter];
}
average = result / nums;
cout << "Average: " << setprecision(1) << average << endl;
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Last edited on
ok just finished it up thanks a lot
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