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假设a = x*b+c,是可以推到(b,c),如果(b,c)是先决策的赢得话,可以推到(b,c+b),这样对方只能推到(b,c),自己就赢了。如果(b,c)是先决策得输得话,那么就可以直接推到(b,c)让对方输。
#includeusing namespace std;typedef long long ll;typedef long double lf;typedef unsigned long long ull;typedef pair P;const int inf = 0x7f7f7f7f;const ll INF = 1e16;const int N = 1e3+10;const ull base = 131;const int mod = 998244353;inline int read(){ int x=0,f=1;char ch=getchar();while(ch<'0'||ch>'9'){ if(ch=='-')f=-1;ch=getchar();}while(ch>='0'&&ch<='9'){ x=x*10+ch-'0';ch=getchar();}return x*f;}inline string readstring(){ string str;char s=getchar();while(s==' '||s=='\n'||s=='\r'){ s=getchar();}while(s!=' '&&s!='\n'&&s!='\r'){ str+=s;s=getchar();}return str;}int random(int n){ return (int)(rand()*rand())%n;}void writestring(string s){ int n = s.size();for(int i = 0;i < n;i++){ printf("%c",s[i]);}}bool is_prime(int n){ if(n <2) return false;for(int i = 2;i*i <= n;i++){ if(n%i == 0) return false;}return true;}int fun(int a,int b,int f){ //a > b if(a >= 2*b || a%b == 0) return f; return fun(b,a-b,f^1);}void solve(){ int a = read(),b = read(); if(a < b) swap(a,b);//a > b if(fun(a,b,1)) puts("Stan wins"); else puts("Ollie wins");}int main(){ int t = read(); while(t--){ solve(); } return 0;}
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