Submission #38605

#	Time	Username	Problem	Language	Result	Execution time	Memory
38605		funcsr	Game (IOI13_game)	C++14	36 / 100	6479 ms	158420 KiB

game

#include "game.h"
#include <iostream>
#include <string>
#include <vector>
#include <cmath>
#include <queue>
#include <set>
#include <cassert>
#include <algorithm>
using namespace std;
typedef pair<int, int> P;
#define rep(i, n) for (int i=0; i<(n); i++)
#define all(x) x.begin(), x.end()
#define uniq(x) x.erase(unique(all(x)), x.end())
#define pb push_back
#define _1 first
#define _2 second
#define INF 1145141919
#define MOD 1000000007

long long gcd(long long X, long long Y) {
  long long tmp;
  while (X != Y && Y != 0) {
    tmp = X;
    X = Y;
    Y = tmp % Y;
  }
  return X;
}

//const int MAX_R = 2000;
//const int MAX_C = 100000;
const int MAX_R = 1000000000;
const int MAX_C = 1000000000;
const int MAX_N2 = MAX_R+1;
const long long MAX_N = 1LL*(MAX_R+1)*(MAX_C+1);
int V1 = 0;
//const int MAX_V1 = 4*1e7;
const int MAX_V1 = 1e7;
int lch[MAX_V1], rch[MAX_V1];
long long val[MAX_V1];
int alloc() {
  lch[V1] = -1, rch[V1] = -1;
  return V1++;
}
void seg1_update(long long x, long long v, int k=0, long long l=0, long long r=MAX_N) {
  if (r-l == 1) {
    val[k] = v;
    return;
  }
  if (x < (l+r)/2) {
    if (lch[k] == -1) lch[k] = alloc();
    seg1_update(x, v, lch[k], l, (l+r)/2);
  }
  else {
    if (rch[k] == -1) rch[k] = alloc();
    seg1_update(x, v, rch[k], (l+r)/2, r);
  }
  val[k] = gcd(lch[k]==-1?0:val[lch[k]], rch[k]==-1?0:val[rch[k]]);
}
long long seg1_query(long long a, long long b, int k=0, long long l=0, long long r=MAX_N) {
  if (b <= l || r <= a) return 0;
  if (a <= l && r <= b) return val[k];
  return gcd(lch[k]==-1?0:seg1_query(a, b, lch[k], l, (l+r)/2),
             rch[k]==-1?0:seg1_query(a, b, rch[k], (l+r)/2, r));
}

struct SegTree2 {
  SegTree2 *lch, *rch;
  int seg_k;
  SegTree2() : lch(NULL), rch(NULL) {
    seg_k = alloc();
  }
  void update(int x, int y, long long v, int l=0, int r=MAX_N2) {
    seg1_update(1LL*MAX_N2*y+x, v, seg_k);
    if (r-l == 1) return;
    if (x < (l+r)/2) {
      if (lch == NULL) lch = new SegTree2();
      lch->update(x, y, v, l, (l+r)/2);
    }
    else {
      if (rch == NULL) rch = new SegTree2();
      rch->update(x, y, v, (l+r)/2, r);
    }
  }
  long long query(int a, int b, int ql, int qr, int l=0, int r=MAX_N2) {
    if (b <= l || r <= a) return 0;
    if (a <= l && r <= b) return seg1_query(1LL*MAX_N2*ql, 1LL*MAX_N2*qr, seg_k);
    return gcd(lch?lch->query(a, b, ql, qr, l, (l+r)/2):0,
               rch?rch->query(a, b, ql, qr, (l+r)/2, r):0);
  }
};

SegTree2 root;

void init(int R, int C) {
}

void update(int P, int Q, long long K) {
  root.update(P, Q, K);
}

long long calculate(int P, int Q, int U, int V) {
  return root.query(P, U+1, Q, V+1);
}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:18:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
  int res;
      ^

• Subtask 1: 10 / 10
• Subtask 2: 0 / 27
• Subtask 3: 26 / 26
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20