Thread: How to make this work =(

The question is to input a non-negative real number:
and approximate the closest fraction.

so i.e.

if

Nonnegative real number: 0.751
Closest approximation = 3/4


( 42.7488 -> approx. 171/4 ...and so on)

Code:

#include <stdio.h>

int main() {
    
    double p, pre, cur;
    int i, j, x, y, d;
    
    printf("Nonnegative real number: ");
    scanf("%d.%p", &d, &p);
    
    while(cur>pre){
    
    for (i=1; i<=100; i++){
        
        for (j=1; j<99; j++){
            
            pre = (double)j/i - p;                                          
        }
    }                              
    
    
    for (x=2; x<=100; x++){

        for(y=2; y<99; y++){
                 
            cur = (double)y/x - p;  
        }
    }   
    
    if (cur > pre)
       break;
       break;
    }
                                                
   printf("Closest approximation = %d/%d, ", (x*d)+y, x);                                     
    

                                             
    
return 0;

}