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// 你可以用这个生成数据
// import numpy as np
//
// print(2000000)
// for x in np.random.choice(2000000, 2000000):
// print(x, end=' ')
int n;
int aux[2000000];
void radix_sort(int a[], int n) {
const int U = 65536;
int i;
// 不行, segment fault
// int cnt[65536] = {};
// 可以
int cnt[65536];
i = 0;
while (i < U) {
cnt[i] = 0;
i = i + 1;
}
i = 0;
while (i < n) {
cnt[a[i] % U] = cnt[a[i] % U] + 1;
i = i + 1;
}
i = 1;
while (i < U) {
cnt[i] = cnt[i] + cnt[i - 1];
i = i + 1;
}
i = n - 1;
while (i >= 0) {
cnt[a[i] % U] = cnt[a[i] % U] - 1;
aux[cnt[a[i] % U]] = a[i];
i = i - 1;
}
i = 0;
while (i < U) {
cnt[i] = 0;
i = i + 1;
}
i = 0;
while (i < n) {
cnt[aux[i] / U % U] = cnt[aux[i] / U % U] + 1;
i = i + 1;
}
i = 1;
while (i < U) {
cnt[i] = cnt[i] + cnt[i - 1];
i = i + 1;
}
i = n - 1;
while (i >= 0) {
cnt[aux[i] / U % U] = cnt[aux[i] / U % U] - 1;
a[cnt[aux[i] / U % U]] = aux[i];
i = i - 1;
}
}
int main(){
starttime();
int a[2000000];
n = getarray(a);
radix_sort(a, n);
putarray(n, a);
stoptime();
return 0;
}
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