#include <iostream> using namespace std; int main() { int n,m,i,j,p,k; int a[100],b[100]; cin >> n >> m; a[0]=n; i=0; p=0; k=0; do { for (j=0;j<i;j++) if (a[i]==a[j]) { p=1; k=j; break; } if (p) break; b[i]=a[i]/m; a[i+1]=a[i]%m*10; i++; }while (a[i]!=0); cout << b[0] << "."; for (j=1; j<k; j++) cout << b[j]; if (p) cout << "("; for (j=k;j<i;j++) cout << b[j]; if (p) cout << ")"; cout << endl; return 0; }

输入：5 13

输出：_________