# モジュールのインポート
import math
import sys
 
# グローバル変数
INPUTNO = 2       # 入力数
HIDDENNO = 2      # 中間層のセル数
MAXINPUTNO = 100  # データの最大個数
 
# 下請け関数の定義
# getdata()関数
def getdata(e):
    """学習データの読み込み"""
    n_of_e = 0 # データセットの個数
    # データの入力
    for line in sys.stdin:
        e[n_of_e] = [float(num) for num in line.split()]
        n_of_e += 1
    return n_of_e
# getdata()関数の終わり
 
# forward()関数
def forward(wh, wo, hi, e):
    """順方向の計算"""
    # hiの計算
    for i in range(HIDDENNO):
        u = 0.0
        for j in range(INPUTNO):
            u += e[j] * wh[i][j]
        u -= wh[i][INPUTNO] # しきい値の処理
        hi[i] = f(u)
 
    # 出力oの計算
    o = 0.0
    for i in range(HIDDENNO):
        o += hi[i] * wo[i]
    o -= wo[HIDDENNO] # しきい値の処理
    return f(o)
# forward()関数の終わり
 
# f()関数
def f(u):
    """伝達関数"""
    # ステップ関数の計算
    if u >= 0:
        return 1.0
    else:
        return 0.0
    # シグモイド関数の計算
    # return 1.0 / (1.0 + math.exp(-u))
# f()関数の終わり
 
# メイン実行部
wh = [[-2, 3, -1], [-2, 1, 0.5]]  # 中間層の重み
wo = [-60, 94, -1]                # 出力層の重み
e = [[0.0 for i in range(INPUTNO)]
     for j in range(MAXINPUTNO)]  # データセット
hi = [0 for i in range(HIDDENNO + 1)] # 中間層の出力
 
# 入力データの読み込み
n_of_e = getdata(e)
print("データの個数:", n_of_e)
 
# 計算の本体
for i in range(n_of_e):
    print(i, ":", e[i], "->", forward(wh, wo, hi, e[i]))
# nn.pyの終わり

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