floor WTF0_x(floor x){
        return sqrt(2*x);
}

floor WTF0_y(floor x){
        return pow(x)*2;
}

floor WTF1(floor x){
        return 미분값(x); //여긴 어캐해야할지.. 으헠ㅇㅎ크ㅔㅇ홍ㄴ 아! 내가 지잡대다!
}

floor WTF2(floor x,floor y){
        floor i=0;
        for(i=0;i<10;i+=0.01){
                if((y-WTF0_y(i))/(x-WTF0_x(i))*WTF1(x)==1) return i;
        }
        return 0;
}

void main(){
        printf("%f\n",WTF2(1,4));
}


으.... 아마도?
오류뜨면 말좀여 ㅜㅜ