[扩展欧拉函数板子] cf 7C line

题目 求AX+BY=C的x,y，若无解，输出-1ios 题目连接：https://codeforces.com/contest/7/problem/Cweb 代码 #include<cstdio> #include<cstring> #include<cmath> #include<cstdlib> #include<cctype> #include<ctime> #include<iostrea

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