题解 | #圆周率的截取#
圆周率的截取
https://www.nowcoder.com/practice/cf8c7858d3ae48ccadb660b05d3cead5
pi = input()
idx = int(input())
print(pi[idx])
print(pi[:pi.index('.')+idx+1])
圆周率的截取
https://www.nowcoder.com/practice/cf8c7858d3ae48ccadb660b05d3cead5
pi = input()
idx = int(input())
print(pi[idx])
print(pi[:pi.index('.')+idx+1])
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