题解 | 回合制游戏

import sys

def main():
    HP = int(sys.stdin.readline())
    normalAttack = int(sys.stdin.readline())
    
    buffedAttack = int(sys.stdin.readline())
    
    if HP%normalAttack==0:
        plan1 = HP//normalAttack
    else:
        plan1 = HP//normalAttack+1
    
    if HP%buffedAttack==0:
        plan2 = 2*HP//buffedAttack
    else:
        plan2 = 2*HP//buffedAttack+1
        
    print(min(plan1, plan2))


if __name__ == "__main__":
    main()