Submission #402699

#	Time	Username	Problem	Language	Result	Execution time	Memory
402699		prvocislo	Game (IOI13_game)	C++17	36 / 100	13090 ms	132196 KiB

game

#include "game.h"
#include <iostream>
#include <vector>
typedef long long ll;
using namespace std;

long long gcd(long long X, long long Y) {
    long long tmp;
    while (X != Y && Y != 0) {
        tmp = X, X = Y, Y = tmp % Y;
    }
    return X;
}
int r, c;
void update_1d(int i, ll k, vector<ll>& v){
    v[i + c] = k;
    for (i = ((i + c) >> 1); i > 0; i >>= 1) v[i] = gcd(v[i << 1], v[i << 1 | 1]);
}
ll query_1d(int li, int ri, vector<ll>& v) {
    ll g = 0;
    for (li += c, ri += c + 1; li < ri; li >>= 1, ri >>= 1) {
        if (li & 1) g = gcd(g, v[li++]);
        if (ri & 1) g = gcd(g, v[--ri]);
    } return g;
}
vector<vector<ll> > st;
void init(int R, int C) {
    r = R, c = C; 
    st.assign(r * 2, vector<ll>(c * 2, 0));
}
void update(int x, int y, long long k) {
    x += r;
    update_1d(y, k, st[x]);
    for (x = (x >> 1); x > 0; x >>= 1)
        for (int i = 0; i < c * 2; i++) st[x][i] = gcd(st[x << 1][i], st[x << 1 | 1][i]);
}
long long calculate(int lx, int ly, int rx, int ry) {
    ll g = 0;
    for (lx += r, rx += r + 1; lx < rx; lx >>= 1, rx >>= 1) {
        if (lx & 1) g = gcd(g, query_1d(ly, ry, st[lx++]));
        if (rx & 1) g = gcd(g, query_1d(ly, ry, st[--rx]));
    }
    return g;
}

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