[백준|파이썬] 16506: CPU (실버5)

문제

https://www.acmicpc.net/problem/16506

16506번: CPU

 

 

🐍파이썬

import sys
input=sys.stdin.readline
n = int(input())
cpu = {"ADD": "0000", "SUB": "0001", "MOV":"0010",
       "AND":"0011", "OR":"0100", "NOT":"0101", "MULT":"0110",
       "LSFTL":"0111", "LSFTR":"1000", "ASFTR":"1001",
       "RL":"1010", "RR":"1011"}
for _ in range(n):
    bit4 = 0
    a = list(input().split())
    if a[0][-1] == "C":	#마지막 알파벳이 C인 경우 비트4가 1
        print(cpu[a[0][:-1]], end="")
        print("1", end="")
        bit4 = 1    #비트4가 1
    else:
        print(cpu[a[0]], end="")
        print("0", end="")
    print("0", end="")  #비트5, 항상 0
    print(bin(int(a[1]))[2:].zfill(3), end="") #비트6~8, rD
    print(bin(int(a[2]))[2:].zfill(3), end="") #비트9~11, rA
    if bit4 == 0:   #rB, 12~14, 비트15=0
        print(bin(int(a[3]))[2:].zfill(3), end="")
        print("0")
    else:   ##C, 12~15
        print(bin(int(a[3]))[2:].zfill(4))

💡 숫자 자리수 맞추기(zfill, rjust, ljust)

"13".zfill(5)
# 00013 -> 5자리수, 왼쪽 패딩

"6".rjust(5, "0")
# 00006 -> 5자리수, 왼쪽 패딩

"7".ljust(5, "0")
# 70000 -> 5자리수, 오른쪽 패딩

 

 

다른 풀이 방법

import sys
 
iterations = int(sys.stdin.readline())
 
opcodes = ['ADD', 'ADDC', 
            'SUB', 'SUBC', 
            'MOV', 'MOVC', 
            'AND', 'ANDC', 
            'OR', 'ORC', 
            'NOT', 'DUMMY',
            'MULT', 'MULTC', 
            'LSFTL', 'LSFTLC', 
            'LSFTR', 'LSFTRC', 
            'ASFTR', 'ASFTRC',
            'RL', 'RLC',
            'RR', 'RRC'
            ]
 
for i in range(iterations):
    mc = 0
    opcode, rD, rA, rB = sys.stdin.readline().split()
    code = opcodes.index(opcode)
    mc += code * 2**11
    mc += int(rD) * 2**7
    mc += int(rA) * 2**4
    mc += int(rB) * 2**(1-code%2)
 
    print(bin(mc)[2:].zfill(16))