#include <stdio.h>
int prt(int n);
int main(void)
{
int x, i = 1, j = 9, cnt = 1;
while(1)
{
if(i <= x && i + j >= x)
{
if(x
% 2 == 1) printf("%d/%d", prt
(x
), cnt
); else printf("%d/%d", prt
(x
), cnt
+ 1); break;
}
i = i + j + 1;
cnt+= 2;
}
return 0;
}
int prt(int n)
{
int a;
switch(n % 10)
{
case 1:
case 2:
a = 1;
break;
case 3:
case 4:
a = 2;
break;
case 5:
case 6:
a = 3;
break;
case 7:
case 8:
a = 4;
break;
case 9:
case 0:
a = 5;
break;
default:
break;
}
return a;
}
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