Submission #93148

#	Time	Username	Problem	Language	Result	Execution time	Memory
93148		Bodo171	Game (IOI13_game)	C++14	63 / 100	2601 ms	32972 KiB

game

#include "game.h"
#include <climits>
#include <iostream>
#include <algorithm>
#include <map>
#define mp make_pair
using namespace std;

struct aint
{
    aint *ls,*rs,*nxt;
    long long val;
    bool ok;
    aint()
    {
        ls=rs=0;nxt=0;
        val=0;ok=0;
    }
};
static aint *rad,*arb[40005];
static long long ans;
static int Rowss,Columnss;
static int X1,Y1,X2,Y2;
long long gcd(long long X, long long Y) {
    long long tmp;
    if(!X) return Y;
    while (X != Y && Y != 0) {
        tmp = X;
        X = Y;
        Y = tmp % Y;
    }
    return X;
}

void init(int R, int C) {
    Rowss=R;Columnss=C;
    for(int i=1;i<=4*R;i++)
        arb[i]=new aint;
    rad=new aint;
}
void updY(aint* &nod,int l,int r,int poz,long long value)
{
    if(l==r)
    {
        nod->val=value;
        return;
    }
     int m=(l+r)/2;
     if(poz<=m)
    {
        if(!nod->ls) nod->ls=new aint;
        updY(nod->ls,l,m,poz,value);
    }
    else
    {
        if(!nod->rs) nod->rs=new aint;
        updY(nod->rs,m+1,r,poz,value);
    }
    nod->val=0;
    if(nod->ls) nod->val=gcd(nod->val,nod->ls->val);
    if(nod->rs) nod->val=gcd(nod->val,nod->rs->val);
}
void qrY(aint* &nod,int l,int r)
{
    if(Y1<=l&&r<=Y2)
    {
        ans=1LL*gcd(ans,nod->val);
        return;
    }
    int m=(l+r)/2;
    if(Y1<=m&&nod->ls) qrY(nod->ls,l,m);
    if(m<Y2&&nod->rs) qrY(nod->rs,m+1,r);
}
long long aux;
void updX(int nod,int l,int r,int poz,int y,long long value)
{
    updY(arb[nod],1,Columnss,y,value);
    if(l==r)
    {
        updY(arb[nod],1,Columnss,y,value);
        return;
    }
    int m=(l+r)/2;
    if(poz<=m) updX(2*nod,l,m,poz,y,value);
    else updX(2*nod+1,m+1,r,poz,y,value);
    ans=0;Y1=Y2=y;
    qrY(arb[2*nod],1,Columnss);
    aux=ans;ans=0;
    qrY(arb[2*nod+1],1,Columnss);
    updY(arb[nod],1,Columnss,y,gcd(aux,ans));
}

void qrX(int nod,int l,int r)
{
    if(X1<=l&&r<=X2)
    {
        qrY(arb[nod],1,Columnss);
        return;
    }
    int m=(l+r)/2;
    if(X1<=m) qrX(2*nod,l,m);
    if(m<X2) qrX(2*nod+1,m+1,r);
}
void update(int P, int Q, long long K) {
    P++,Q++;
    updX(1,1,Rowss,P,Q,K);
}

long long calculate(int P, int Q, int U, int V) {
    ans=0;
    P++,Q++,U++,V++;
    X1=P;Y1=Q;X2=U;Y2=V;
    qrX(1,1,Rowss);
    return ans;
}

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