Submission #349864

#	Time	Username	Problem	Language	Result	Execution time	Memory
349864		beksultan04	Game (IOI13_game)	C++14	0 / 100	1 ms	384 KiB

game

#include "game.h"
#include <bits/stdc++.h>
#ifndef EVAL
#include "grader.cpp"
#endif
using namespace std;
#define lol long long
#define pii pair<int,int>
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define fr first
#define sc second
#define ret return
#define scanl(a) scanf("%lld",&a);
#define scanll(a,b) scanf("%lld %lld",&a, &b);
#define scanlll(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define scan1(a) scanf("%d",&a);
#define scan2(a,b) scanf("%d %d",&a, &b);
#define scan3(a,b,c) scanf("%d %d %d",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin(),s.rend()
#define pb push_back
#define sz(v) (int)v.size()
#define endi puts("");
#define eps 1e-12

vector <vector <int> > der;
int n,m;

void init(int R, int C) {
    n = R-1;
    m = C-1;
    R+=R;
    C+=C;
    der.resize(R+R, vector <int> (C+C));
}


void update_y(int vx,int lx,int rx,int vy,int ly,int ry,int x,int y,lol k){
    if (ly == ry){
        if (lx == rx){
            der[vx][vy] = k;
        }
        else
            der[vx][vy] = __gcd(der[vx<<1][vy],der[(vx<<1)+1][vy]);
    }
    else {
        int m = ly+ry>>1;
        if (m < y)
            update_y(vx,lx,rx,(vy<<1)+1,m+1,ry,x,y,k);
        else
            update_y(vx,lx,rx,vy<<1,ly,m,x,y,k);
        der[vx][vy] = __gcd(der[vx][vy<<1],der[vx][(vy<<1)+1]);
    }
}

void update_x(int vx,int lx,int rx,int x,int y,lol k){
    if (lx != rx){
        int m = lx+rx>>1;
        if (x > m){
            update_x((vx<<1)+1,m+1,rx,x,y,k);
        }
        else {
            update_x((vx<<1),lx,m,x,y,k);
        }
    }
    update_y(vx,lx,rx,1,0,m,x,y,k);
}

lol gcd_y(int vx,int lx,int rx,int vy,int ly,int ry,int x1,int y1,int x2,int y2){
    if (y1 > ry || y2 < ly)ret 0;
    if (y1 <= ly && ry <= y2)ret der[vx][vy];
    int m = ly+ry>>1;
    ret __gcd(gcd_y(vx,lx,rx,vy<<1,ly,m,x1,y1,x2,y2),gcd_y(vx,lx,rx,(vy<<1)+1,m+1,ry,x1,y1,x2,y2));
}

lol gcd_x(int vx,int lx,int rx,int x1,int y1,int x2,int y2){
    if (x1 > rx || x2 < lx)ret 0;
    if (x1 <= lx && rx <= x2){
        ret gcd_y(vx,lx,rx,1,0,m,x1,y1,x2,y2);
    }
    else {
        int m = lx+rx>>1;
        ret __gcd(gcd_x(vx<<1,lx,m,x1,y1,x2,y2),gcd_x((vx<<1)+1,m+1,rx,x1,y1,x2,y2));
    }
}

void update(int P, int Q, long long K) {

    update_x(1,0,n,P,Q,K);

}



long long calculate(int P, int Q, int U, int V) {
    return gcd_x(1,0,n,P,Q,U,V);
}

Compilation message (stderr)

game.cpp: In function 'void update_y(int, int, int, int, int, int, int, int, long long int)':
game.cpp:49:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   49 |         int m = ly+ry>>1;
      |                 ~~^~~
game.cpp: In function 'void update_x(int, int, int, int, int, long long int)':
game.cpp:60:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   60 |         int m = lx+rx>>1;
      |                 ~~^~~
game.cpp: In function 'long long int gcd_y(int, int, int, int, int, int, int, int, int, int)':
game.cpp:74:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   74 |     int m = ly+ry>>1;
      |             ~~^~~
game.cpp: In function 'long long int gcd_x(int, int, int, int, int, int, int)':
game.cpp:84:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   84 |         int m = lx+rx>>1;
      |                 ~~^~~

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