Cod sursa(job #2055260)

Utilizator neth------ neth Data 2 noiembrie 2017 23:33:56
Problema Radix Sort Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 1.06 kb
#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3")
ifstream fi("radixsort.in");
ofstream fo("radixsort.out");

#define MAX 10000000
int v[MAX], w[MAX];

void radix(int n, int v[], int w[], int bit) {
  int x[0x100]; memset(x, 0, sizeof x);
  for (int i = 0; i < n; i++) x[(v[i] >> bit) & 0xff]++;
  for (int i = 0xff; i > 0; i--) x[i] = x[i - 1]; x[0] = 0;
  for (int i = 1; i < 0x100; i++) x[i] += x[i - 1];
  for (int i = 0; i < n; i++) w[x[(v[i] >> bit) & 0xff]++] = v[i];
}

#define BUFMAX 11000000
int bufcnt; char buf[BUFMAX];
inline void write(int x) {
  int digcnt = 0; char dig[11];
  dig[digcnt++] = ' ';
  do dig[digcnt++] = x % 10 + '0', x /= 10; while (x);
  for (int i = digcnt - 1; i >= 0; i--) buf[bufcnt++] = dig[i];
}
inline void flush() { fo.write(buf, bufcnt); }

int main() {
  int n, a, b, c; fi >> n >> a >> b >> c;
  v[0] = b; for (int i = 1; i < n; i++) v[i] = (1LL * a * v[i - 1] + b) % c;
  radix(n, v, w, 0);
  radix(n, w, v, 8);
  radix(n, v, w, 16);
  radix(n, w, v, 24);
  for (int i = 0; i < n; i += 10) write(v[i]); flush();
}