c语言编程a=163,b=121,求整数s,t使得sa+tb=(a,b)答:使用扩展欧几里德算法 include <cstdio>#include <cstdlib>using namespace std;void ex_gcd(int a,int b,int &s,int &t){if (b) ex_gcd(b,a%b,s,t);else {s=1; t=0; return;}int S=t,T=s-a/b*t;s=S; t=T;}int main(){int s,t,a,b;a=163; b=121;ex_gcd(a...