fizzbuzz

#define X write(1,&F,1);write(1,&i,1);write(1,&z,1);write(1,&z,1);
#define Y write(1,&B,1);write(1,&u,1);write(1,&z,1);write(1,&z,1);
//Xはprintf("Fizz");、Yはprintf("Buzz");とほぼ同じ

char *strrev(char *s){//文字列を反転させる
char *ret = s;
char *t = s;
char c;
while( *t != '\ 0' )
    t++;
t--;
while(t > s) {
 c = *s;
 *s = *t;
 *t = c;
 s++;
 t--;
}
return ret;
}

void itoa(int value, char *buff){//itoa
char *p;
int mod;
if( 0 > value ) {
 *buff++ = '-';
 value = -value;
}
p = buff;
do{
 mod = value % 10 + 48;
 *p++ = (char)mod;
 value /= 10;
}while(value);
*p = '\ 0';
strrev(buff);
}

int main(void){
int j;
int k;
char F='F';
char B='B';
char i='i';
char u='u';
char z='z';
char N=0x0A;//改行コード
char buf[16];
//こっからなぜか崩れる(´・ω・｀)ｼｮﾎﾞｰﾝ
for(j=1;j<=100;j++){//1から100まで     if(j%15==0){       X       Y    }else if(j%5==0){       Y    }else if(j%3==0){       X    }else{       itoa(j,buf);       for(k=0;buf[k] != '\ 0';k++){         write(1,&buf[k],1);       }     }     write(1,&N,1);   }   return 0; }