Fixer dla Malwiny

c.cpp

#include <cstdio>
#include <cstdlib>

int main() {
    int ch;
    int cha;
    ch = getchar();
    if(ch == 0xEF) {
        getchar(); // 0xBB
        getchar(); // 0xBF
        ch = getchar(); // ??
    }
    do {
        if(ch == EOF)
            break;
        if(ch <= 0x007F) {
            putchar(ch);
        } else if(ch <= 0x07FF) {
            cha =  (ch & 0x1F) << 6;
            cha += (getchar() & 0x3F);
            if(cha == 0x153)
                putchar(cha=0x9C);
            else
                putchar(cha);
        } else if(ch <= 0xFFFF) {
            cha =  (ch & 0x0F) << 12;
            cha += (getchar() & 0x3F) << 6;
            cha += (getchar() & 0x3F);
	    putchar(cha);
        } // else skip!
    } while(EOF != (ch = getchar()));
    return 0;
}