save project

a

+num=0
+for cock in range(1,21):

a.py

+num=0
+for cock in range(1,21):
+    for hen in range (1,34):
+        for chicken in range (1,101):
+            if cock + hen + chicken ==100 and cock*5+hen*3+chicken/3==100:
+                num=num+1
+                print(f'第{num}种方案是：公鸡{cock}只，母鸡{hen}只，小鸡{chicken}只')
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b.py

+for a in range (0,10):
+    for b in range (0,10):
+        for c in range (0,10):
+            for d in range (0,10):
+                if int(str(8)+str(a)+str(b)+str(c)+str(d))+int(str(a)+str(b)+str(c)+str(d)+str(6))==121410:
+                    print(a,b,c,d)

c.py

+import csv
+with open('/data/subways.csv') as f:
+    rows = list(csv.reader(f))
+    for row in rows[1:]:
+        if(int(row[1])>=120):
+            print(row[0])
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