ls1 = [] while True: element = input().split() if len(element) != 0: ls1.append(element) else: break ls2 = sorted(ls1, key=lambda x:float(x[1][:-1])*1000 if x[1][-1]=='t' else float(x[1][:-2])) print(ls2)
时间: 2023-06-12 14:03:26 浏览: 166
这段代码的作用是接受用户的输入,将输入的每一行按空格分割成列表,每个列表再放入一个大列表中,直到用户输入空行停止输入。然后对这个大列表进行排序,按照第二个元素的大小排序,第二个元素是一个字符串,可能以“t”或“G”结尾,表示数据的大小,其中“t”表示字节大小的十二次方,即1,000,000,000,000字节,而“G”表示字节大小的九次方,即1,000,000,000字节。如果以“t”结尾,则将其转换为浮点数乘以1000,并按照新的值进行排序,否则直接将其转换为浮点数并排序。
最后,将排序后的大列表输出。
相关问题
t=int(input()) for i in range(t): n=int(input()) ls1=list(map(int,input().split())) a1=sum(ls1) x1=0 x=[] if a1%2==0: print("0") else: for i in range(len(ls1)): if ls1[i]%2==0: while ls1[i]%2==0: ls1[i]=ls1[i]//2 x1=x1+1 x.append(x1) x1=0 else: while ls1[i]%2!=0: ls1[i]=ls1[i]//2 x1=x1+1 x.append(x1) x1=0 print(min(x))改为C语言
以下是将给出的 Python 代码翻译为等效的 C 代码:
```
#include <stdio.h>
int main() {
int t, n, i, j;
scanf("%d", &t);
for (i = 0; i < t; i++) {
scanf("%d", &n);
int ls1[n], a1 = 0, x1 = 0;
for (j = 0; j < n; j++) {
scanf("%d", &ls1[j]);
a1 += ls1[j];
}
int x[n], k = 0;
if (a1 % 2 == 0) {
printf("0\n");
} else {
for (j = 0; j < n; j++) {
if (ls1[j] % 2 == 0) {
while (ls1[j] % 2 == 0) {
ls1[j] /= 2;
x1++;
}
x[k] = x1;
k++;
x1 = 0;
} else {
while (ls1[j] % 2 != 0) {
ls1[j] /= 2;
x1++;
}
x[k] = x1;
k++;
x1 = 0;
}
}
int min_x = x[0];
for (j = 1; j < k; j++) {
if (x[j] < min_x) {
min_x = x[j];
}
}
printf("%d\n", min_x);
}
}
return 0;
}
```
需要注意的几点:
1. Python 代码中的 `list` 类型可以使用 C 数组代替,需要在读入 `n` 后动态分配数组空间。
2. C 代码中需要使用循环读入数据,而不是使用 `map()` 函数。
3. Python 代码中使用的 `//` 运算符表示整除,C 语言中使用 `/` 即可。
4. Python 代码中的 `list.append()` 方法可以使用一个变量 `k` 记录插入位置,然后直接将值赋给数组对应位置。
5. Python 代码中使用的 `min()` 函数可以使用一个变量 `min_x` 记录最小值,然后遍历数组更新最小值即可。
ls1 = {} ls2 = [] ls3 = [['班级', '学号', '姓名', '测试1(百分制)', '测试2(百分制)', '测试3(百分制)', '测试4(百分制)', '总分', '备注']] with open('total.csv', mode='r') as f: r = f.readlines() n = 0 for l in r: ls4 = l.split(',') ls4[-1] = ls4[-1][:-1] if n == 0: for t in ls4[3:]: num = '' for s in t: if s.isdigit(): num += s if s == '.': break ls2.append(int(num)) else: lens = len(ls4[3:]) for j in range(lens): if ls4[3 + j] == '缺考': ls4[3 + j] = 0 ls1[ls4[2]] = list(map(int, [ls4[3], ls4[4], ls4[5], ls4[6]])) n += 1 for t, v in ls1.items(): f = len(v) for k in range(f): v[k] = (v[k] / ls2[k]) * 100 // 1 p = sum(v) v.append(p) with open('total.csv', mode='r') as f: n = f.readlines() for l in r: ls = l.split(',') ls[-1] = ls[-1][:-1] ls3.append(ls[:3]) a = 1 for t, v in ls1.items(): for o in v: o = str(o) ls3[a + 1].append(o) a += 1 ls3.pop(1) with open('最终成绩单.csv', mode='w') as f: for i in ls3: s = ','.join(i) s += '\n' f.write(s) print(i) 改一下变量
好的,我来帮您改一下变量名:
```python
dict_scores = {}
list_max_scores = []
list_table_header = [['班级', '学号', '姓名', '测试1(百分制)', '测试2(百分制)', '测试3(百分制)', '测试4(百分制)', '总分', '备注']]
with open('total.csv', mode='r') as f:
r = f.readlines()
n = 0
for l in r:
list_line = l.split(',')
list_line[-1] = list_line[-1][:-1]
if n == 0:
for t in list_line[3:]:
num = ''
for s in t:
if s.isdigit():
num += s
if s == '.':
break
list_max_scores.append(int(num))
else:
len_scores = len(list_line[3:])
for j in range(len_scores):
if list_line[3 + j] == '缺考':
list_line[3 + j] = 0
dict_scores[list_line[2]] = list(map(int, [list_line[3], list_line[4], list_line[5], list_line[6]]))
n += 1
for t, v in dict_scores.items():
len_scores = len(v)
for k in range(len_scores):
v[k] = (v[k] / list_max_scores[k]) * 100 // 1
total_score = sum(v)
v.append(total_score)
with open('total.csv', mode='r') as f:
n = f.readlines()
for l in r:
list_line = l.split(',')
list_line[-1] = list_line[-1][:-1]
list_table_header.append(list_line[:3])
row_num = 1
for t, v in dict_scores.items():
for score in v:
score = str(score)
list_table_header[row_num + 1].append(score)
row_num += 1
list_table_header.pop(1)
with open('最终成绩单.csv', mode='w') as f:
for i in list_table_header:
line = ','.join(i)
line += '\n'
f.write(line)
print(i)
```
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