坑点：【"Good Choice" or "Bad Choice" left-justified starting in column 25】 ，第25列开始，所以是4个空格（手动微笑脸。。
#include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <cstdlib> #include <map> #include <list> #include <vector> #include <stack> #include <queue> #include <algorithm> #include <iostream> #define go(i,a,b) for(int i=a;i<=b;i++) #define og(i,a,b) for(int i=a;i>=b;i--) #define mem(a) memset(a,0,sizeof(a)) #define cs cout<<"-----"<<endl; using namespace std; const int inf=0x3f3f3f3f; const int maxn = 1e5 + 5; const double pi = atan(1.)*4; typedef long long ll; int gcd(int a,int b) { return b == 0 ? a : gcd(b,a%b); } int main() { int n,m; while(cin>>n>>m) { if(gcd(n,m) == 1) printf("dd Good Choice\n\n",n,m); else printf("dd Bad Choice\n\n",n,m); } return 0; }
