天平砝码称重量

#include <stdio.h>
#include <math.h>
int sum = 0;
int array[5] = {1,3,9,27,81};
int count[5] = {1,4,13,40,121};
char jo[2][2] = {
{‘+’,’-’},
{‘-’,’+’}
};

void digui(int,int);

void main()
{
int num;
//scanf("%d",&num);
for(int i = 1 ; i < 122 ; i++)
{
printf("%d = ",i);
digui(i,0);
}

}
void digui(int num,int j)
{

for(int i  = 0 ; i<5 ; i++)
if(num <= count[i]) break; //定位
if(num > array[i])
{
printf("%d%c",array[i],jo[j][0]);
if(j == 1) j = (j+1)%2;
digui(fabs(num-array[i]),j);
}
if(num < array[i])
{
printf("%d%c",array[i],jo[j][1]);
if(j ==0) j = (j+1)%2;
digui(fabs(num-array[i]),j);
}
if(num == array[i])
{
printf("%d\n",array[i]);
return;
}