Submission #43174

#	Time	Username	Problem	Language	Result	Execution time	Memory
43174		yusufake	Game (IOI13_game)	C++98	63 / 100	13093 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; }
} root;  
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);
    }


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.tl = 0; root.tr = 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:6:18: 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:6:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p.tl+p.tr >> 1)
                  ^
game.cpp:48:45: 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:6:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p.tl+p.tr >> 1)
                  ^
game.cpp:49:50: 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:6:18: 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:6:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p.tl+p.tr >> 1)
                  ^
game.cpp:54:46: 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:6:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
 #define tm  (p.tl+p.tr >> 1)
                  ^
game.cpp:55:51: 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