Problem:
Score : 100 points

Problem Statement

In AtCoder City, there are three stations numbered 1, 2, and 3.

Each of these stations is operated by one of the two railway companies, A and B. A string S of length 3 represents which company operates each station. If S_i is A, Company A operates Station i; if S_i is B, Company B operates Station i.

To improve the transportation condition, for each pair of a station operated by Company A and one operated by Company B, there will be a bus service connecting them.

Determine if there is a pair of stations that will be connected by a bus service.

Constraints

Each character of S is A or B.

|S| = 3

Input

Input is given from Standard Input in the following format:

S

Output

If there is a pair of stations that will be connected by a bus service, print Yes; otherwise, print No.

Sample Input 1

ABA

Sample Output 1

Yes

Company A operates Station 1 and 3, while Company B operates Station 2.

There will be a bus service between Station 1 and 2, and between Station 2 and 3, so print Yes.

Sample Input 2

BBA

Sample Output 2

Yes

Company B operates Station 1 and 2, while Company A operates Station 3.

There will be a bus service between Station 1 and 3, and between Station 2 and 3, so print Yes.

Sample Input 3

BBB

Sample Output 3

No

Company B operates all the stations. Thus, there will be no bus service, so print No.

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <stdio.h>

int main(int argc, char *argv[])
{
    int a, b;
    int out_8, out_10;
    int tmp;
    unsigned long count = 0;
    scanf("%i %i",&a, &b);

    double x_max, x_min, y_max, y_min;
    x_max = ( (double)a + 0.99999999 ) * 100.0 / 8.0;
    x_min = ( (double)a ) * 100.0 / 8.0;
    y_max = ( (double)b + 0.99999999 ) * 100.0 / 10.0;
    y_min = ( (double)b ) * 100.0 / 10.0;

    if (y_max < x_min){
        printf("-1");
        return 0;
    }
    else{
       out_8 = (int)x_min;
       tmp = out_8;
       while (tmp < y_min)
       {
           tmp++;
       }
       
    }
    printf("%d", tmp);

    return 0;
}