回答編集履歴
2
辞書を使った例
test
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@@ -1,8 +1,44 @@
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エレガントなコードは他の方に任せて・・・
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エレガントなコードは他の方に任せて・・・私は愚直にfor文で！
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自分用の練習課題として辞書を使った例を追記
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辞書を使った例
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```Python3
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# k=key
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# v=value
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# d=dict
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# data=[1,2] [1,5] ...
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# n=newlist
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k = sorted(list(dict(src).keys()))
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v = [0 for i in range(len(k))]
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d = dict(zip(k, v))
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for data in src:
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d[data[0]] += data[1]
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n = d.values()
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print(n)
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```
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for文
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```Python3
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44
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1
変数名誤記訂正
test
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@@ -8,25 +8,25 @@
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# coding=UTF-8
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src = [[1,2],[1,5],[1,4],[2,1],[2,3],[3,6],[3,7]]
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x =
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x = src[0][0]##xyで比較
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s =
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s = src[0][1]##sum
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n = []##newlist
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for i in range(len(
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for i in range(len(src)-1):
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y =
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y = src[i+1][0]
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if x == y:
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s +=
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s += src[i+1][1]
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else:
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@@ -34,7 +34,7 @@
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x = y
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s =
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s = src[i+1][1]
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n.append(s)
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