题解 | 小红的魔法药剂
小红的魔法药剂
https://www.nowcoder.com/practice/1ede2daa3ab445bc8ac8ea62b6ca8201
n = int(input())
a = list(map(int,input().split()))
bc = []
yb = []
yc = []
for i in range(n):
b, c = list(map(int,input().split()))
yb.append(b)
yc.append(c)
g = a[b-1] + a[c-1]
bc.append(g)
s = 0
for i in range(n):
if a[i] < bc[i]:
s += a[i]
else:
s += a[yb[i]-1] + a[yc[i]-1]
print(s)
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