각도기

function solution(angle) {
    var answer = 0;
    if(0 < angle &&  angle < 90){
        answer = 1;
    }else if(angle == 90){
        answer = 2;
    }else if(90 < angle && angle < 180){
        answer = 3;
    }else{
         answer = 4;
    }
    return answer;
}