Submission #43175

#	Time	Username	Problem	Language	Result	Execution time	Memory
43175		yusufake	Game (IOI13_game)	C++98	63 / 100	13094 ms	256000 KiB

game

#include<bits/stdc++.h>
#include "game.h"

using namespace std;
 
#define tm  (p->tl+p->tr >> 1)
#define mp make_pair
#define pb push_back
#define st first
#define nd second
 
typedef long long ll;

const int mod = 1e9 + 7;
const int N   = 2e5 + 5;
 
inline ll gcd(ll u, ll v) {
    ll r;
    while (v != 0) { r = u % v; u = v; v = r; }
    return u;
}

struct node{
    ll x;
    int tl, tr;
    struct node *l, *r, *to_y;
    node() { x = 0;  l = r = to_y = NULL; }
};  
node* nw(int l, int r){
    node* p = (node*) malloc(sizeof(node));
    p -> tl = l;  p -> tr = r;
    return p;
}

    ll qry_y(node* p, int ly, int ry) { 
	   if(ly > p->tr || ry < p->tl) return 0;
	   if (ly <= p->tl && p->tr <= ry) return p->x;
	   return gcd(p->l ? qry_y(p->l,ly,ry) : 0 , p->r ? qry_y(p->r,ly,ry) : 0);
    }
    ll qry_x(node* p, int lx, int rx, int ly, int ry) { 
	   if(lx > p->tr || rx < p->tl) return 0;
	   if (lx <= p->tl && p->tr <= rx) return p->to_y ? qry_y(p->to_y,ly,ry) : 0;
	   return gcd(p->l ? qry_x(p->l,lx,rx,ly,ry) : 0 , p->r ? qry_x(p->r,lx,rx,ly,ry) : 0);
    }
 
    void up_y(node* p, int py, ll val){  
	    if(p->tl == p->tr){ p->x = val; return; }
	    if(py > tm) { if(p->r == NULL) p->r = nw(tm+1,p->tr); up_y(p->r,py,val); }
	    else        { if(p->l == NULL) p->l = nw(p->tl,tm);   up_y(p->l,py,val); }
        p->x = gcd(p->l ? p->l->x : 0 , p->r ? p->r->x : 0);
    }
    void up_x(node* p, int px, int py, ll val){
	    if(p->tl < p->tr){
		    if(px > tm) { if(p->r == NULL) p->r = nw(tm+1,p->tr); up_x(p->r,px,py,val); }
		    else        { if(p->l == NULL) p->l = nw(p->tl,tm);   up_x(p->l,px,py,val); }
	        val = gcd(p->l ? qry_y(p->l->to_y,py,py) : 0 , p->r ? qry_y(p->r->to_y,py,py) : 0);
        }
	    if(p->to_y == NULL) p->to_y = nw(0,mod); up_y(p->to_y,py,val);
    }

node* root;
void update(int x, int y, ll val){
	up_x(root,x,y,val);
}	
ll calculate(int lx, int ly, int rx, int ry){
	return qry_x(root,lx,rx,ly,ry);
}	
 
void init(int a, int b) { root = nw(0,mod); }

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 up_y(node*, int, ll)':
game.cpp:6:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p->tl+p->tr >> 1)
                   ^
game.cpp:48:14: note: in expansion of macro 'tm'
      if(py > tm) { if(p->r == NULL) p->r = nw(tm+1,p->tr); up_y(p->r,py,val); }
              ^
game.cpp:6:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p->tl+p->tr >> 1)
                   ^
game.cpp:48:47: note: in expansion of macro 'tm'
      if(py > tm) { if(p->r == NULL) p->r = nw(tm+1,p->tr); up_y(p->r,py,val); }
                                               ^
game.cpp:6:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p->tl+p->tr >> 1)
                   ^
game.cpp:49:53: note: in expansion of macro 'tm'
      else        { if(p->l == NULL) p->l = nw(p->tl,tm);   up_y(p->l,py,val); }
                                                     ^
game.cpp: In function 'void up_x(node*, int, int, ll)':
game.cpp:6:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p->tl+p->tr >> 1)
                   ^
game.cpp:54:15: note: in expansion of macro 'tm'
       if(px > tm) { if(p->r == NULL) p->r = nw(tm+1,p->tr); up_x(p->r,px,py,val); }
               ^
game.cpp:6:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p->tl+p->tr >> 1)
                   ^
game.cpp:54:48: note: in expansion of macro 'tm'
       if(px > tm) { if(p->r == NULL) p->r = nw(tm+1,p->tr); up_x(p->r,px,py,val); }
                                                ^
game.cpp:6:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p->tl+p->tr >> 1)
                   ^
game.cpp:55:54: note: in expansion of macro 'tm'
       else        { if(p->l == NULL) p->l = nw(p->tl,tm);   up_x(p->l,px,py,val); }
                                                      ^

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