[PHP]#include "stdafx.h"
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
int main()
{
start: ;
int const n=21;
int A[n]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
int B[n]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
int C[n]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
int m=1,i,j,k;
char ch,opr=';',l,ans_CO,ans_RE;
system("cls");
printf("\n\nEnter Number , Oprator , next number and then enter '=' :\n\n");
En_Num_1: ;
ch=getche(); // enter - + or one number
if(ch=='-')
A[0]=1;
else if(ch=='+')
A[0]=0;
else if(ch>='0'&&ch<='9')
{
for(j=0,l=48;l<58;l++)
{
if(ch==l)
{
A[m]=j;
m++;
}
j++;
}
}
else if(ch=='\b')
{
goto En_Num_1;
}
else
{
printf("\n\nNumber is not valid !!");
printf("\n\nEnter any key to start program again ");
getch();
goto start;
}
for(i=m;i<n;) // enter number 1
{
ch=getche();
if(ch>='0'&&ch<='9') // take it
{
for(j=0,l=48;l<58;l++)
{
if(ch==l)
{
A[i]=j;
i++;
}
j++;
}
}
else if(ch=='+')// May be Oprator typed !
{
opr=ch;
printf("\b %c",opr);
break;
}
else if(ch=='\b') // Backspace
{
printf(" ");
printf("\b");
i--;
A[i]=0;
}
else // error !
{
printf("\n\nNumber is not valid !!");
printf("\n\nEnter any key to start program again ");
getch();
goto start;
}
if(i==0)
goto En_Num_1;
}
if(i!=n) // clean Array A with number 1
{
for(j=i;j>0;j--)
A[j+(n-i)]=A[j];
for(j=1;j<n-i+1;j++)
A[j]=0;
}
Enter_OP : ;
if(opr==';')
{
opr=getche(); // Scan oprator
if(opr=='+')
{
printf("\b %c",opr);
}
else // Oprator not valid
{
printf("\n\nOprator is not valid !!");
printf("\n\nEnter any key to start program again ");
getch();
goto start;
}
}
// Number 2 start
m=1;
printf(" (");
En_Num_2: ;
ch=getche(); // enter - + or one number
if(ch=='-')
B[0]=1;
else if(ch=='+')
B[0]=0;
else if(ch>='0'&&ch<='9')
{
for(j=0,l=48;l<58;l++)
{
if(ch==l)
{
B[m]=j;
m++;
}
j++;
}
}
else if(ch=='\b')
{
printf("(");
goto En_Num_2 ;
}
else // error !
{
printf("\n\nNubmer is not valid !!!");
printf("\n\nEnter any key to start program again ");
getch();
goto start;
}
for(i=m;i<n;) // enter number 2
{
ch=getche();
if(ch>='0'&&ch<='9') // take it
{
for(j=0,l=48;l<58;l++)
{
if(ch==l)
{
B[i]=j;
i++;
}
j++;
}
}
else if(ch=='\b') // Backspace
{
i--;
if(i==0)
{
if(temp==1)
{
printf(" \b");
goto En_Num_2;
}
else if(temp==0)
{
printf("(");
goto En_Num_2;
}
}
B[i]=0;
printf(" ");
printf("\b");
}
else if(ch=='=')
{
printf("\b) = ");
break;
}
else // error !
{
printf("\n\nNubmer is not valid !!!");
printf("\n\nEnter any key to start program again ");
getch();
goto start;
}
if(i==0)
goto En_Num_2;
}
if(i==n)
{
printf(") = ");
}
if(i!=n) // clean Array B with number 1
{
for(j=i;j>0;j--)
B[j+(n-i)]=B[j];
for(j=1;j<n-i+1;j++)
B[j]=0;
}
switch( opr )
{
case'+': // OPR = +
{
if(A[0]==0&&B[0]==0||A[0]==1&&B[0]==1) // if Numbers > 0 or < 0
{
for(i=n-1;i>0;i--)
{
if(A[i]+B[i]>=10)
{
C[i]=(A[i]+B[i])%10;
A[i-1]++;
if(i==1)
{
if(A[i]+B[i]>9) // Maybe number larger than 20 numbers
{
printf("\b\b \n\n\t\t * Number is too large *");
goto Ask ;
}
}
}
else
{
C[i]=A[i]+B[i];
}
}
if(A[0]==1&&B[0]==1) // if Numbers < 0 => Result number is -
{
C[0]=1;
}
}
if(A[0]==0&&B[0]==1||A[0]==1&&B[0]==0) // if Number 1 > 0 & Number 2 < 0
{
for(i=1;i<n;i++) // A > B or A < B ???
{
if(A[i]==B[i])
continue;
else if(A[i]>B[i])
{
for(j=n-1;j>0;j--)
{
if(A[j]-B[j]<0) // if A[i] < B[i] => A[i-1]-- & A[i]+10
{
C[j]=A[j]+10-B[j];
k=1;
while(A[j-k]==0)
{
A[j-k]=9;
k++;
continue;
}
A[j-k]--;
}
else
{
C[i]=A[i]-B[i];
}
}// for(i=n-1;i>0;i--)
C[0]=A[0];
break;
}// else if(A[i]>B[i])
else
{
for(i=n-1;i>0;i--)
{
if(B[i]<A[i])
{
C[i]=B[i]+10-A[i];
B[i-1]--;
}
else
{
C[i]=B[i]-A[i];
}
}
C[0]=B[0];
break;
}// else
}// for(i=1;i<n;i++)
}
break;
} // Case '+'
default :
{
printf("\n\nProgram is beta you can only use + & -");
printf("\n\nEnter any key to continue program from start it ");
getch();
goto start;
}
}
if(C[0]==0) // Print Result
{
printf("+");
}
if(C[0]==1)
{
printf("-");
}
for(i=1;i<n;i++)
printf("%d",C[i]);
Ask : ;
printf("\n\nDo you wnat to continue ? (y/n)");
ans_CO=getche();
if(ans_CO=='y'&&A[1]+B[1]<10)
{
printf("\n\nDo you want to continue with Result ? (y/n)");
ans_RE=getche();
if(ans_RE=='y')
{
opr=';';
system("cls");
printf("Enter Oprator and number and then enter = :\n\n");
for(i=0;i<n;i++)
{
A[i]=C[i];
if(i==0)
continue;
printf("%d",A[i]);
}
printf(" ");
goto Enter_OP;
}
else
{
goto start;
}
}
else if(ans_CO=='y'&&A[1]+B[1]>9)
{
goto start;
}
else if(ans_CO=='n')
{
goto end;
}
end : ;
getch();
return 0;
}[/PHP]
