C Program To Calculate Simple Interest

/* Calculating simple interest in C */

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 #include<stdio.h>  
 #include<conio.h>  
 void main()  
 {  
   int p,r;  
   float n,interest=0.0;  
   clrscr();  
   printf("Enter the value of p: ");  
   scanf("%d",&p);  
   printf("Enter the value of r: ");  
   scanf("%d",&r);  
   printf("Enter the value of n: ")  
   scanf("%f",&n);  
   interest=(p*r*n)/100;  
   printf("The simple interest is: %f",interest);  
   getch();  
 }