[BOJ/백준] 3954 Brainf**k 인터프리터

def find_brackt():
    for ind,command in enumerate(commands):
        if command == '[':
            bracket.append((ind,1))
        elif command == ']':
            bracket.append((ind,-1))
    brind = 0
    temp = []
    while brind < len(bracket): 
        if bracket[brind][1] == 1:
            temp.append(bracket[brind][0])
        else:
            open_bracket = temp.pop()
            bracket_couple[bracket[brind][0]] = open_bracket
            bracket_couple[open_bracket] = bracket[brind][0]
        brind += 1
 
def go():
    global command_index,string_index,pointer
    if commands[command_index] == '-':
        arr[pointer] = arr[pointer]-1
        if arr[pointer]<0:
            arr[pointer] = 255
    elif commands[command_index] == '+':
        arr[pointer] = arr[pointer] + 1
        if arr[pointer] > 255:
            arr[pointer] = 0
    elif commands[command_index] == '<':
        pointer -= 1
        if pointer < 0:
            pointer = memorysize -1
    elif commands[command_index] == '>':
        pointer += 1
        if pointer == memorysize:
            pointer = 0
    elif commands[command_index] == '[':
        if arr[pointer] == 0:
            command_index = bracket_couple[command_index]
    elif commands[command_index] == ']':
        if arr[pointer] != 0:
            command_index = bracket_couple[command_index]
    elif commands[command_index] == '.':
        pass
    else:
        if string_index == inputsize:
            arr[pointer] = 255
        else:
            arr[pointer] = ord(strings[string_index])
            string_index += 1
    command_index += 1
 
T = int(input())
MAX_NUMBER = 50000000
for tc in range(T):
    memorysize,codesize,inputsize = map(int,input().split())
    pointer = 0 # 포인터가 가리키는 index
    arr = [0]*memorysize
    command_cnt = 0  # 명령 횟수
    commands = list(input())
    strings = list(input())
    command_index = 0  # 명령어의 위치
    string_index = 0
    result = 'Terminates'
    bracket = []
    bracket_couple = {}
    find_brackt()
    loop_flag = False
    loop_idx = float('inf')
    while command_cnt <= MAX_NUMBER and command_index < codesize:
        command_cnt += 1
        go()
    if command_index == codesize:
        print('Terminates')
    else:
        while command_cnt >=0:
            command_cnt -= 1
            go()
            loop_idx = min(command_index,loop_idx)
        print(f'Loops {loop_idx-1} {bracket_couple[loop_idx-1]}')

 

 

def find_brackt():
    for ind,command in enumerate(commands):
        if command == '[':
            bracket.append((ind,1))
        elif command == ']':
            bracket.append((ind,-1))
    brind = 0
    temp = []
    while brind < len(bracket): 
        if bracket[brind][1] == 1:
            temp.append(bracket[brind][0])
        else:
            open_bracket = temp.pop()
            bracket_couple[bracket[brind][0]] = open_bracket
            bracket_couple[open_bracket] = bracket[brind][0]
        brind += 1
 
 
 
T = int(input())
MAX_NUMBER = 50000000
for tc in range(T):
    memorysize,codesize,inputsize = map(int,input().split())
    pointer = 0 # 포인터가 가리키는 index
    arr = [0]*memorysize
    command_cnt = 0  # 명령 횟수
    commands = list(input())
    strings = list(input())
    command_index = 0  # 명령어의 위치
    string_index = 0
    result = 'Terminates'
    bracket = []
    bracket_couple = {}
    find_brackt()
    loop_flag = False
    loop_idx = float('inf')
    while command_index < codesize:
        if commands[command_index] == '-':
            arr[pointer] = (arr[pointer]-1)%(2**8)
        elif commands[command_index] == '+':
            arr[pointer] = (arr[pointer]+1)%(2**8)
        elif commands[command_index] == '<':
            pointer -= 1
            if pointer < 0:
                pointer = memorysize -1
        elif commands[command_index] == '>':
            pointer += 1
            if pointer == memorysize:
                pointer = 0
        elif commands[command_index] == '[':
            if arr[pointer] == 0:
                command_index = bracket_couple[command_index]
        elif commands[command_index] == ']':
            if arr[pointer] != 0:
                command_index = bracket_couple[command_index]
        elif commands[command_index] == '.':
            pass
        else:
            if string_index == inputsize:
                arr[pointer] = 255
            else:
                arr[pointer] = ord(strings[string_index])
                string_index += 1
        command_index += 1
        command_cnt += 1
        if command_cnt > MAX_NUMBER:
            loop_idx = min(loop_idx,command_index)
        if command_cnt > MAX_NUMBER*2:
            loop_flag = True
            break
    
    if loop_flag:
        print(f'Loops {loop_idx-1} {bracket_couple[loop_idx-1]}')
    else:
        print('Terminates')