Answer to Question #10770 in C++ for Sanchit Agarwal

Question #10770
#include<iostream.h> #include<conio.h> void main() { clrscr(); int numArr[3000]; // Approximately , size of array depends on size of factorial. int total,rem=0,count; //rem use to save remainder of division(Carry Number). register int i; for(i=0;i<3000;i++) numArr[i]=0; //set all array on NULL. i=2999; //start from end of array. numArr[2999]=1; for(count=2;count<=1000;count++) { while(i>0) { total=numArr[i]*count+rem; rem=0; if(total>9) { numArr[i]=total%10; rem=total/10; } else numArr[i]=total; i--; } rem=0; total=0; i=2999; } for(i=0;i<3000;i++) // Display array's cell to show factorial 1000 { if(numArr[i]!=0 | count==1) { cout<<numArr[i]; count=1; } } getch(); } PLEASE EXPLAIN THIS PROGRAM GIVING AN EXAMPLE AND VALUES OF VARIABLE AT EACH STEP.
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