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How to convert C++ code to C #include<iostream> #include <stdlib.h> using namespace std; void multiplication() {...

How to convert C++ code to C

#include<iostream>
#include <stdlib.h>
using namespace std;
void multiplication()
{
int num1;
int c, num2, ans;
cout<<"Enter difficulty level(1/2)\n";
cin>>c;
if(c==1)
{
num1= rand() % 10;
num2= rand() % 10;
cout<<"what is"<<num1 <<"*"<<num2<<"?\n" ;
cin>>ans
while(ans!=(num1*num2))
{
if(ans!=(num1*num2))
{
cout<< "No. Please try again.\n";
cout<<"what is"<<num1 <<"*"<<num2<<"?\n" ;
cin>>ans;
}
}
}
else if(c==2)
{
num1= rand() % 10+90;
num2= rand() % 10+90;
cout<<"what is"<<num1 <<"*"<<num2<<"?\n" ;
cin>>ans;
while(ans!=(num1*num2))
{
if(ans!=(num1*num2))
{
cout<< "No. Please try again.\n";
cout<<"what is"<<num1 <<"*"<<num2<<"?\n" ;
cin>>ans;
}
}
}
}
void addition()
{
int num1;
int c, num2, ans;
cout<<"Enter difficulty level(1/2)\n";
cin>>c;
if(c==1)
{
num1= rand() % 10;
num2= rand() % 10;
cout<<"what is"<<num1 <<"+"<<num2<<"?\n" ;
cin>>ans;
while(ans!=(num1+num2))
{
if(ans!=(num1+num2))
{
cout<< "No. Please try again.\n";
cout<<"what is"<<num1 <<"+"<<num2<<"?\n" ;
cin>>ans;
}
}
}
else if(c==2)
{
num1= rand() % 10+90;
num2= rand() % 10+90;
cout<<"what is"<<num1 <<"+"<<num2<<"?\n" ;
cin>>ans;
while(ans!=(num1+num2))
{
if(ans!=(num1+num2))
{
cout<< "No. Please try again.\n";
cout<<"what is"<<num1 <<"+"<<num2<<"?\n" ;
cin>>ans;
}
}
}
}
void subtraction()
{
int num1;
int c, num2, ans;
cout<<"Enter difficulty level(1/2)\n";
cin>>c;
if(c==1)
{
num1= rand() % 10;
num2= rand() % 10;
cout<<"what is"<<num1 <<"-"<<num2<<"?\n" ;
cin>>ans;
while(ans!=(num1-num2))
{
if(ans!=(num1-num2))
{
cout<< "No. Please try again.\n";
cout<<"what is"<<num1 <<"-"<<num2<<"?\n" ;
cin>>ans;
}
}
}
else if(c==2)
{
num1= rand() % 10+90;
num2= rand() % 10+90;
cout<<"what is"<<num1 <<"-"<<num2<<"?\n" ;
cin>>ans;
while(ans!=(num1-num2))
{
if(ans!=(num1-num2))
{
cout<< "No. Please try again.\n";
cout<<"what is"<<num1 <<"-"<<num2<<"?\n" ;
cin>>ans;
}
}
}
}
void division()
{
float num1,num2;
int c;
float ans;
cout<<"Enter difficulty level(1/2)\n";
cin>>c;
if(c==1)
{
num1= rand() % 10;
num2= rand() % 10;
cout<<"what is"<<num1 <<"/"<<num2<<"?\n" ;
cin>>ans;
while(ans!=(num1/num2))
{
if(ans!=(num1/num2))
{
cout<< "No. Please try again.\n";
cout<<"what is"<<num1 <<"/"<<num2<<"?\n" ;
cin>>ans;
}
}
}
else if(c==2)
{
num1= rand() % 10+90;
num2= rand() % 10+90;
cout<<"what is"<<num1 <<"/"<<num2<<"?\n" ;
cin>>ans;
while(ans!=(num1/num2))
{
if(ans!=(num1/num2))
{
cout<< "No. Please try again.\n";
cout<<"what is"<<num1 <<"/"<<num2<<"?\n" ;
cin>>ans;
}
}
}
}
int question()
{   
int c, o,i;
cout<<" 1.Addition\n 2.Subtraction \n 3.Multiplication \n
4.Division\n 5.Random \n Enter your choice\n";
cin>>o;
switch(o)
{
case 1:
addition();
break;
case 2:
subtraction();
break;
case 3:
multiplication();
break;
case 4:
division();
break;
case 5:
i=rand() %4;
if(i==0)
{
addition();
break;
}
else if(i==1)
{
subtraction();
break;
}
else if(i==2)
{
multiplication();
break;
}
else if(i==3)
{
division();
break;
}
break;
}
return 1;
}
//Main function
int main()
{
int n;
char ch = 'y';
while(ch=='y')
{
n= question();
if(n==1)
cout<<"Very good!\n";
cout<<"Do you wish to continue(y/n)?\n";
cin>>ch;
}
return 0;
}

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Homework Answers

Answer #1

The converted code in C language:

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

void multiplication(){
int num1;
int c, num2, ans;
printf("Enter difficulty level(1/2)\n");
scanf("%d",&c);
if(c==1)
{
num1= rand() % 10;
num2= rand() % 10;
printf("what is %d*%d?\n",num1,num2);
scanf("%d",&ans);
while(ans!=(num1*num2))
{
if(ans!=(num1*num2))
{
printf("No. Please try again.\n");
printf("what is %d*%d?\n",num1,num2);
scanf("%d",&ans);
}
}
}
else if(c==2)
{
num1= rand() % 10 + 90;
num2= rand() % 10 + 90;
printf("what is %d*%d?\n",num1,num2);
scanf("%d",&ans);
while(ans!=(num1*num2))
{
if(ans!=(num1*num2))
{
printf("No. Please try again.\n");
printf("what is %d*%d?\n",num1,num2);
scanf("%d",&ans);
}
}
}
}
void addition()
{
int num1;
int c, num2, ans;
printf("Enter difficulty level(1/2)\n");
scanf("%d",&c);
if(c==1)
{
num1= rand() % 10;
num2= rand() % 10;
printf("what is %d+%d?\n",num1,num2);
scanf("%d",&ans);
while(ans!=(num1+num2))
{
if(ans!=(num1+num2))
{
printf("No. Please try again.\n");
printf("what is %d+%d?\n",num1,num2);
scanf("%d",&ans);
}
}
}
else if(c==2)
{
num1= rand() % 10 + 90;
num2= rand() % 10 + 90;
printf("what is %d+%d?\n",num1,num2);
scanf("%d",&ans);
while(ans!=(num1+num2))
{
if(ans!=(num1+num2))
{
printf("No. Please try again.\n");
printf("what is %d+%d?\n",num1,num2);
scanf("%d",&ans);
}
}
}
}
void subtraction()
{
int num1;
int c, num2, ans;
printf("Enter difficulty level(1/2)\n");
scanf("%d",&c);
if(c==1)
{
num1= rand() % 10;
num2= rand() % 10;
printf("what is %d-%d?\n",num1,num2);
scanf("%d",&ans);
while(ans!=(num1-num2))
{
if(ans!=(num1-num2))
{
printf("No. Please try again.\n");
printf("what is %d-%d?\n",num1,num2);
scanf("%d",&ans);
}
}
}
else if(c==2)
{
num1= rand() % 10 + 90;
num2= rand() % 10 + 90;
printf("what is %d-%d?\n",num1,num2);
scanf("%d",&ans);
while(ans!=(num1-num2))
{
if(ans!=(num1-num2))
{
printf("No. Please try again.\n");
printf("what is %d-%d?\n",num1,num2);
scanf("%d",&ans);
}
}
}
}
void division()
{
float num1,num2;
int c;
float ans;
printf("Enter difficulty level(1/2)\n");
scanf("%d",&c);
if(c==1)
{
num1= rand() % 10;
num2= rand() % 10;
printf("what is %d/%d?\n",num1,num2);
scanf("%d",&ans);
while(ans!=(num1/num2))
{
if(ans!=(num1/num2))
{
printf("No. Please try again.\n");
printf("what is %d/%d?\n",num1,num2);
scanf("%d",&ans);
}
}
}
else if(c==2)
{
num1= rand() % 10 + 90;
num2= rand() % 10 + 90;
printf("what is %d/%d?\n",num1,num2);
scanf("%d",&ans);
while(ans!=(num1/num2))
{
if(ans!=(num1/num2))
{
printf("No. Please try again.\n");
printf("what is %d/%d?\n",num1,num2);
scanf("%d",&ans);
}
}
}
}
int question()
{   
int c, o,i;
printf(" 1.Addition\n 2.Subtraction \n 3.Multiplication \n 4.Division\n 5.Random \n Enter your choice\n");
scanf("%d",&o);
switch(o)
{
case 1:
addition();
break;
case 2:
subtraction();
break;
case 3:
multiplication();
break;
case 4:
division();
break;
case 5:
i=rand() %4;
if(i==0)
{
addition();
break;
}
else if(i==1)
{
subtraction();
break;
}
else if(i==2)
{
multiplication();
break;
}
else if(i==3)
{
division();
break;
}
break;
}
return 1;
}
//Main function
int main()
{
srand(time(0));
int n;
char ch = 'y';
while(ch=='y')
{
n= question();
if(n==1)
printf("Very good!\n");
printf("Do you wish to continue(y/n)?\n");
scanf("%c",&ch);
scanf("%c",&ch);
}
return 0;
}

OUTPUT:

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