Submission #315502

#	Time	Username	Problem	Language	Result	Execution time	Memory
315502		qpwoeirut	Game (IOI14_game)	C++17	15 / 100	1 ms	512 KiB

game

#include "game.h"

const int MN = 1501;

int N;
int mat[MN][MN];
int ct[MN];
int alone[MN];
int edges, q;
void initialize(int n) {
    N = n;
    edges = N-1;
    q = (N * (N-1)) / 2;
    for (int i=0; i<N; ++i) {
        for (int j=0; j<N; ++j) {
            mat[i][j] = -1;
        }
        ct[i] = 0;
        mat[i][i] = 1;
        alone[i] = true;
    }
}

int hasEdge(int u, int v) {
    if (mat[u][v] != -1) return mat[u][v];
    ++ct[u];
    ++ct[v];
    --q;

    mat[u][v] = (ct[u] == N-1) || (ct[v] == N-1);
    if (alone[u] && alone[v]) {

    }

    if (q < edges) mat[u][v] = true;

    if (mat[u][v]) {
        --edges;
        alone[u] = alone[v] = false;
    }

    mat[v][u] = mat[u][v];

    return mat[u][v];
}
/*
4
2 3
1 3
0 2
0 1
1 2
0 3
*/

• Subtask 1: 15 / 15
• Subtask 2: 0 / 27
• Subtask 3: 0 / 58