8 2 4 2 4 5 100 2 100
2 3 4 2 5 1 100 2
40%的数据满足:1<=n<=1000
80%的数据满足:1<=n<=50000
100%的数据满足:1<=n<=200000,每个数均不超过1500 000 000(1.5*10^9)