Question

2. Write a Marie program that accepts two positive (inputs) two integers and outputs the sum of both of the integers and all the numbers in between

Write a Marie program that determines the largest of a series of positive integers provided by a user. The user will enter a -1 when she is finished. Up to 10 numbers will be provided by the user.

Write a Marie program that accepts two positive integers, multiples them by repeated addition, and outputs the result.

Write a Marie program that accepts 4 positive integers and outputs them in ascending order.

Write a Marie program of 40 lines or less that accepts 15 positive integers and outputs the maximum number that was provided by the user. You need to use a loop to input the numbers and determine the max value.

Answer 1

#include<iostream>
using namespace std;
int getnum(string mess,int[]);
int add(int [], int [],int[] ,int,int);
void print(int a[],int);
bool checkinput(string);
int main()
{int a[21];
int b[21];
int c[51];
int i, lena,lenb,lenc;
lena=getnum("first number: ",a);
cout<<endl;
lenb=getnum("second number: ",b);
lenc=add(a,b,c,lena,lenb);
cout<<"    ";
print(a,lena);
cout<<"+ ";
print(b,lenb);
for(i=0;i<lenc+5;i++)
    cout<<"-";
cout<<"\n    ";
print(c,lenc);
system("pause");
return 0;
}
bool checkinput(string in)
{int i;
if(in.length()>20)
      return false;
for(i=0;i<in.length();i++)
     if(in[i]<'0'||in[i]>'9')
          {cout<<"invalid input\n";
          return false;
          }
return true;
}
int getnum(string mess,int a[])
{int i;
for(i=0;i<21;i++)
    a[i]=0;
string input;
cout<<"Enter "<<mess;
cin>>input;
while(!checkinput(input))
    {cout<<"Enter "<<mess;
     cin>>input;
     }
for(i=0;i<input.length();i++)
     a[input.length()-1-i]=input[i]-'0';
return input.length();
}
int add(int a[], int b[],int c[],int lena,int lenb)
{int i,n,carry=0,d;
cout<<endl;
for(i=0;i<21;i++)
    c[i]=0;
if(lena>lenb)
    n=lena;
else
    n=lenb;
   
for(i=0;i<n;i++)
    {d=a[i]+b[i]+carry;
      c[i]=d%10;
      carry=d/10;
      }
if(carry==0)
   return n;
else
   c[i]=carry;
    
return n+1;
}
void print(int a[],int len)
{int i;
for(i=len-1;i>=0;i--)
       cout<<a[i];
cout<<endl;
}