/* prototypes */
void printline (char c);
   voidvalue (float, float, int);
                                                                   
   main( )                                                     
   {                                                           
        float principal, inrate;                               
        int period;                                            
                                                               
        printf("Enter principal amount, interest");            
        printf(" rate, and period \n");                        
        scanf("%f %f %d",&principal, &inrate, &period);        
        printline('Z');                                        
        value(principal,inrate,period);                        
        printline('C');                                        
   }                                                           

 

   void printline(char ch)                                               
   {                                                           
        int i ;                                                
        for(i=1; i <= 52; i++)                                 
             printf("%c",ch);                                  
        printf("\n");                                          
   }                                                           
   voidvalue(float p, float r, int n)
   {                                                           
        int year ;                                             
        float sum ;                                            
        sum = p ;                                              
        year = 1;                                              
        while(year <= n)                                       
        {                                                      
            sum = sum * (1+r);                                 
            year = year +1;                                    
        }                                                      
        printf("%f\t%f\t%d\t%f\n",p,r,n,sum);                  
   }  
                                                         
 

Output                                                      
                                                               
   Enter principal amount, interest rate, and period           
   5000 0.12  5                                               
   ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ        
   5000.000000     0.120000        5       8811.708984         
   CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC