牛客网多行输入输出问题 Python3 模板样例

男娘i 2024-04-19 14:34 62阅读 0赞

相信无论是过去，现在，还是将来，每年的找工作的朋友都会被牛客网如此垃圾的输入输出设定给恶心到。明明本地运行ok，放到牛客的oj上就是0ac，所以特此来这里记录一下：

### **一.单行输入** ###

题目形式比如：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70][]解决模板：

a = input().split()
    a1 = []
    for k in a:
        # a1.append(k)#str
        a1.append(int(k))#int，得到list，推荐用下面那个一句话的

或

line = list(map(int,input().split(' '))) #直接得到list

或

n = int(input())#输入只是一个数字

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 1][]

### **二.多行输入** ###

**(一)** 首行只有一个数字n

**1.行数n已知**

题目形式比如：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 2][]

解决模板：

'多行输入'
    res = []
    n = int(input())#行数
    for _ in range(n):
        s = input()
        if s!='':
            temp = [j for j in s.split()] #str输入
            # temp = [int(j) for j in s.split()] #int输入
            res.append(temp[0])
        else:
            break
    print(res)

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 3][]

注：注意输出要求的差异

①. 每行输出一个(默认)

def F(data):
        return data
    
    '多行输入'
    res = []
    n = int(input())#行数
    for _ in range(n):
        s = input()
        if s!='':
            temp = [j for j in s.split()] #str输入
            # temp = [int(j) for j in s.split()] #int输入
            res.append(temp[0])
        else:
            break
    
    for i in res:
        print(F(i)) #每行只输出一个
        # print(F(i), end=' ') #全在同一行内输出，用空格隔开

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 4][]

②.全在同一行内输出，用空格隔开

def F(data):
        return data
    
    '多行输入'
    res = []
    n = int(input())#行数
    for _ in range(n):
        s = input()
        if s!='':
            temp = [j for j in s.split()] #str输入
            # temp = [int(j) for j in s.split()] #int输入
            res.append(temp[0])
        else:
            break
    
    for i in res:
        # print(F(i)) #每行只输出一个
        print(F(i), end=' ') #全在同一行内输出，用空格隔开

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 5][]

**2.行数n未知**

题目形式比如:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 6][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 7][]

解决模板：

'多行输入，行数未知'
    res = []
    while True:
        try:
            s = input()
            # res.append(list(map(int, s.split(' '))))
            res.append(list(map(str, s.split(' '))))
        except:
            break

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 8][]

**(二)** 首行有2个数字n，m ——> 往下n行数据对应n， 再m行数据对应m

题目形式比如:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 9][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 10][]

解决模板：

info = list(map(int,input().split(' ')))
    a = []
    b = []
    for i in range(info[0]):
        a.append(input().split(' '))
    for j in range(info[1]):
        b.append(input().split(' '))
    print(a)
    print(b)

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 11][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/c21d8283abe848d7a62665ba81e0fce1.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5OTM4NjY2_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/66c147869d11450cb470c9a211ae8bea.png
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