A multiplication game
| Time Limit: 1000MS | Memory Limit: 65536K | |
| Total Submissions: 5622 | Accepted: 2811 |
Description
Stan and Ollie play the game of multiplication by multiplying an integer p by one of the numbers 2 to 9. Stan always starts with p = 1, does his multiplication, then Ollie multiplies the number, then Stan and so on. Before a game starts, they draw an integer 1 < n < 4294967295 and the winner is who first reaches p >= n.
Input
Each line of input contains one integer number n.
Output
For each line of input output one line either
Stan wins.
or
Ollie wins.
assuming that both of them play perfectly.
Stan wins.
or
Ollie wins.
assuming that both of them play perfectly.
Sample Input
162 17 34012226
Sample Output
Stan wins. Ollie wins. Stan wins.
Source
【思路】
博弈
2<=n<=9，先手必胜
10<=n<=18，先手必败
19<=n<=162，先手必胜
163<=n<=324，先手必败
…
=-=
【代码】
1 #include<cstdio> 2 3 int main() { 4 double n; 5 while(scanf("%lf",&n)==1) { 6 while(n>18) n/=18; 7 if(n<=9) puts("Stan wins."); 8 else puts("Ollie wins."); 9 } 10 return 0; 11 }