Submission #254218

#	Time	Username	Problem	Language	Result	Execution time	Memory
254218		AaronNaidu	Game (IOI13_game)	C++14	36 / 100	1995 ms	126072 KiB

game

#include <bits/stdc++.h>
#include "game.h"
using namespace std;
typedef long long ll;

int r, c, p, q, u, v;
ll segTree[4096][4096];

void init(int R, int C) {
    r = R;
    c = C;
}

long long gcd2(long long X, long long Y) {
    long long tmp;
    while (X != Y && Y != 0) {
        tmp = X;
        X = Y;
        Y = tmp % Y;
    }
    return X;
}

void update(int p, int q, ll k) {
    p += 2048;
    q += 2048;
    segTree[p][q] = k;
    while (q > 0)
    {
        //cout << "Outerwhile q = " << q << "\n";
        int pTemp = p/2;
        while (pTemp > 0)
        {
            //cout <<"Innerwhile p temp = " << pTemp << "\n";
            segTree[pTemp][q] = gcd2(segTree[2*pTemp][q], segTree[2*pTemp+1][q]);
            pTemp /= 2;
        }
        q /= 2;
        segTree[p][q] = gcd2(segTree[p][2*q], segTree[p][2*q+1]);
        //cout << "End of outerwhile q = " << q << "\n";
    }

}

ll getSegTree(int nodex, int nodey, int nodexstart, int nodexend, int nodeystart, int nodeyend) {
    if (nodexstart > u or nodexend < p or nodeystart > v or nodeyend < q)
    {
        return 0;
    }
    if (nodexstart >= p and nodexend <= u)
    {
        if (nodeystart >= q and nodeyend <= v)
        {
            return segTree[nodex][nodey];
        }
        int midy = (nodeystart + nodeyend)/2;
        return gcd2(getSegTree(nodex, 2*nodey, nodexstart, nodexend, nodeystart, midy), getSegTree(nodex, 2*nodey+1, nodexstart, nodexend, midy+1, nodeyend));
    }
    int midx = (nodexstart + nodexend)/2;
    return gcd2(getSegTree(2*nodex, nodey, nodexstart, midx, nodeystart, nodeyend), getSegTree(2*nodex+1, nodey, midx + 1, nodexend, nodeystart, nodeyend));
}    
    
ll calculate(int P, int Q, int U, int V) {
    p = P;
    q = Q;
    u = U;
    v = V;
    return getSegTree(1, 1, 0, 2047, 0, 2047);
}

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