Submission #98834

#	Time	Username	Problem	Language	Result	Execution time	Memory
98834		Alexa2001	Game (IOI13_game)	C++17	27 / 100	1565 ms	25952 KiB

game

#include "game.h"
#include <bits/stdc++.h>
#define left_son (node<<1)
#define right_son ((node<<1)|1)
#define mid ((st+dr)>>1)

using namespace std;

typedef long long ll;
const int Nmax = 1e5 + 5;

int N, M;
ll ans;

ll gcd2(ll X, ll Y)
{
    if(!Y) return X;
    ll rest = X % Y;
    while(rest)
        X = Y, Y = rest, rest = X % Y;
    return Y;
}


class SegTree
{
    ll a[Nmax<<2];
public:
    void update(int node, int st, int dr, int pos, ll val)
    {
        if(st == dr)
        {
            a[node] = val;
            return;
        }
        if(pos <= mid) update(left_son, st, mid, pos, val);
            else update(right_son, mid+1, dr, pos, val);
        a[node] = gcd2(a[left_son], a[right_son]);
    }

    void query(int node, int st, int dr, int L, int R)
    {
        if(L <= st && dr <= R)
        {
            ans = gcd2(a[node], ans);
            return;
        }
        if(L <= mid) query(left_son, st, mid, L, R);
        if(mid < R) query(right_son, mid+1, dr, L, R);
    }
} aint[12];


void init(int R, int C)
{
    if(!(R <= 10 && C <= 100000)) exit(0);
    N = R; M = C;
}

void update(int x, int y, ll K)
{
    aint[x].update(1, 0, M-1, y, K);
}

ll calculate(int P, int Q, int U, int V)
{
    int i, X1, X2, Y1, Y2;
    X1 = min(P, U);
    X2 = max(P, U);
    Y1 = min(Q, V);
    Y2 = max(Q, V);

    ans = 0;
    for(i=X1; i<=X2; ++i)
        aint[i].query(1, 0, M-1, Y1, Y2);
    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: 0 / 10
• Subtask 2: 27 / 27
• Subtask 3: 0 / 26
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20