Submission #224575

#	Time	Username	Problem	Language	Result	Execution time	Memory
224575		T0p_	Game (IOI13_game)	C++14	0 / 100	11 ms	1024 KiB

game

#include "game.h"
#include <bits/stdc++.h>
using namespace std;

int _R, _C;

struct node2
{
    int l, r;
    long long v;
    node2 *L, *R;
    node2(int a, int b)
    {
        l = a;
        r = b;
        v = 0;
        L = R = NULL;
    }
    void extend()
    {
        if(!L && l != r)
        {
            int mid = (l+r)>>1;
            L = new node2(l, mid);
            R = new node2(mid+1, r);
        }
    }    
};

struct node1
{
    int l, r;
    node2 *now;
    node1 *L, *R;
    node1(int a, int b, int c, int d)
    {
        l = a;
        r = b;
        now = new node2(c, d);
        L = R = NULL;
    }
    void extend()
    {
        if(!L && l != r)
        {
            int mid = (l+r)>>1;
            L = new node1(1, mid, 1, _C);
            R = new node1(mid+1, r, 1, _C);
        }
    }
};

node1 *root;

long long gcd2(long long X, long long Y)
{
    long long tmp;
    while (X != Y && Y != 0) {
        tmp = X;
        X = Y;
        Y = tmp % Y;
    }
    return X;
}

void init(int R, int C)
{
    _R = R, _C = C;
    root = new node1(1, R, 1, C);
}

void update2(node2 *seg, int q, long long k)
{
    seg->extend();
    if(!(seg->l <= q && q <= seg->r)) return void(cout << "OUT" << endl);
    if(seg->l == seg->r)
    {
        seg->v = k;
        return ;
    }
    int mid = (seg->l + seg->r)>>1;
    update2(seg->L, q, k);
    update2(seg->R, q, k);
    seg->v = gcd2(seg->L->v, seg->R->v);
}

void update1(node1 *seg, int p, int q, long long k)
{
    seg->extend();
    if(!(seg->l <= p && p <= seg->r)) return void(cout << "OUT" << endl);
    if(seg->l == seg->r)
    {
        update2(seg->now, q, k);
        return ;
    }
    int mid = (seg->l + seg->r)>>1;
    update1(seg->L, p, q, k);
    update1(seg->R, p, q, k);
}

void update(int P, int Q, long long K) {
    P++, Q++;
    update1(root, P, Q, K);
}

long long query2(node2 *seg, int a, int b)
{
    seg->extend();
    if(seg->r < a || b < seg->l) return 0;
    if(a <= seg->l && b <= seg->r) return seg->v;
    return gcd2(query2(seg->L, a, b), query2(seg->R, a, b));
}

long long query1(node1 *seg, int a, int b, int c, int d)
{
    seg->extend();
    if(seg->r < a || b < seg->l) return 0;
    if(a <= seg->l && seg->r <= b) return query2(seg->now, c, d);
    return gcd2(query1(seg->L, a, b, c, d), query1(seg->R, a, b, c, d));
}

long long calculate(int P, int Q, int U, int V) {
    P++, Q++, U++, V++;
    return query1(root, P, Q, U, V);
}

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;
      ^~~
game.cpp: In function 'void update2(node2*, int, long long int)':
game.cpp:81:9: warning: unused variable 'mid' [-Wunused-variable]
     int mid = (seg->l + seg->r)>>1;
         ^~~
game.cpp: In function 'void update1(node1*, int, int, long long int)':
game.cpp:96:9: warning: unused variable 'mid' [-Wunused-variable]
     int mid = (seg->l + seg->r)>>1;
         ^~~

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