Development Project

1712 : 손익분기점 a,b,c=map(int, input().split()) print(-1 if b>=c else a//(c-b)+1) # a,b,c=map(int, input().split());print(-(b>=c)or a//(c-b)+1) 2292 : 벌집 n=int(input()) sum=1 for i in range(1,n+1): if sum>=n or n==1: print(i) break sum+=6*i # n = int(input()) a = 1 b = 1 while n > a: a += 6*b b+=1 print(b) 1193 : 분수찾기 a = int(input()) b=0 while a>0: b+=1 a-=b a+=b b+=1 if b%2==0: print(f"{b-a}/{a}"..