发布题解

#include<bits/stdc++.h> using namespace std; int a[101] ; int main(){ int m , n ; cin >> m >> n ; cout << m <<"/" << n <<"=0." ; for ( int i = 1 ; i < 100 ; i++ ) { a[m] = i; m*=10 ; cout << m / n ; m %= n ; if ( m == 0 ) break ; if ( a[m] != 0 ) { cout << endl << "from " << a[m] << " to " << i ; break ; } } cout << endl ; return 0 ; }