UVA11274 Infinite Resistor Network

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2249 [PDF](https://uva.onlinejudge.org/external/112/p11274.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11274/97ab5fb75d19606696b58aee0b64d756ba4c464f.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11274/203faa7e4616ce78abe78f0887e1e8486db9a85b.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11274/eb95722fd682ced3f0e26cc1cc19fc398dd57679.png)