답안 #31720 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
31720	2017-09-01T11:12:28 Z	top34051	게임 (IOI14_game)	C++14	42 / 100	39 ms	19660 KB

game

#include "game.h"
#include <bits/stdc++.h>
using namespace std;
#define maxn 1505
#define seed 69

int n;
int vis[maxn];
int edge[maxn][maxn];
vector<int> dst, src;

void gentree() {
    int i,a,b,shit=1;
    for(i=1;i<=n;i++) dst.push_back(i);
    random_shuffle(dst.begin(),dst.end());
    src.push_back(dst[0]);
    for(i=1;i<n;i++) {
        a = src[(rand()*seed)%src.size()];
        b = dst[i];
        src.push_back(b);
        edge[a][b] = edge[b][a] = 1;
//        printf("%d: %d %d\n",shit++,a,b);
    }
}

void dfs(int x) {
    vis[x] = 1;
    for(int i=0;i<n;i++) if(!vis[i] && edge[x][i]) dfs(i);
}

bool check(int x,int y) {
    memset(vis,0,sizeof(vis));
    dfs(x);
    if(vis[y]) return 1;
    return 0;
}

void initialize(int N) {
    n = N;
    if(n>80) gentree();
    else memset(edge,1,sizeof(edge));
}

int hasEdge(int u, int v) {
    if(n>80) return edge[u][v];
    edge[u][v] = edge[v][u] = 0;
    if(!check(u,v)) edge[u][v] = edge[v][u] = 1;
    return edge[u][v];
}

Compilation message

game.cpp: In function 'void gentree()':
game.cpp:13:15: warning: unused variable 'shit' [-Wunused-variable]
     int i,a,b,shit=1;
               ^

Subtask #1
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	19660 KB	Output is correct
2	Correct	0 ms	19660 KB	Output is correct
3	Correct	0 ms	19660 KB	Output is correct
4	Correct	0 ms	19660 KB	Output is correct
5	Correct	0 ms	19660 KB	Output is correct
6	Correct	3 ms	19660 KB	Output is correct
7	Correct	0 ms	19660 KB	Output is correct
8	Correct	0 ms	19660 KB	Output is correct
9	Correct	3 ms	19660 KB	Output is correct
10	Correct	0 ms	19660 KB	Output is correct
11	Correct	0 ms	19660 KB	Output is correct
12	Correct	0 ms	19660 KB	Output is correct
13	Correct	0 ms	19660 KB	Output is correct
14	Correct	0 ms	19660 KB	Output is correct
15	Correct	3 ms	19660 KB	Output is correct
16	Correct	0 ms	19660 KB	Output is correct
17	Correct	0 ms	19660 KB	Output is correct
18	Correct	0 ms	19660 KB	Output is correct
19	Correct	0 ms	19660 KB	Output is correct
20	Correct	0 ms	19660 KB	Output is correct
21	Correct	0 ms	19660 KB	Output is correct
22	Correct	3 ms	19660 KB	Output is correct
23	Correct	3 ms	19660 KB	Output is correct
24	Correct	0 ms	19660 KB	Output is correct

Subtask #2
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	19660 KB	Output is correct
2	Correct	0 ms	19660 KB	Output is correct
3	Correct	0 ms	19660 KB	Output is correct
4	Correct	0 ms	19660 KB	Output is correct
5	Correct	0 ms	19660 KB	Output is correct
6	Correct	0 ms	19660 KB	Output is correct
7	Correct	0 ms	19660 KB	Output is correct
8	Correct	0 ms	19660 KB	Output is correct
9	Correct	0 ms	19660 KB	Output is correct
10	Correct	3 ms	19660 KB	Output is correct
11	Correct	0 ms	19660 KB	Output is correct
12	Correct	0 ms	19660 KB	Output is correct
13	Correct	3 ms	19660 KB	Output is correct
14	Correct	0 ms	19660 KB	Output is correct
15	Correct	0 ms	19660 KB	Output is correct
16	Correct	3 ms	19660 KB	Output is correct
17	Correct	0 ms	19660 KB	Output is correct
18	Correct	0 ms	19660 KB	Output is correct
19	Correct	0 ms	19660 KB	Output is correct
20	Correct	3 ms	19660 KB	Output is correct
21	Correct	0 ms	19660 KB	Output is correct
22	Correct	0 ms	19660 KB	Output is correct
23	Correct	0 ms	19660 KB	Output is correct
24	Correct	0 ms	19660 KB	Output is correct
25	Correct	0 ms	19660 KB	Output is correct
26	Correct	0 ms	19660 KB	Output is correct
27	Correct	0 ms	19660 KB	Output is correct
28	Correct	0 ms	19660 KB	Output is correct
29	Correct	0 ms	19660 KB	Output is correct
30	Correct	3 ms	19660 KB	Output is correct
31	Correct	0 ms	19660 KB	Output is correct
32	Correct	0 ms	19660 KB	Output is correct
33	Correct	0 ms	19660 KB	Output is correct
34	Correct	26 ms	19660 KB	Output is correct
35	Correct	29 ms	19660 KB	Output is correct
36	Correct	29 ms	19660 KB	Output is correct
37	Correct	29 ms	19660 KB	Output is correct
38	Correct	26 ms	19660 KB	Output is correct
39	Correct	26 ms	19660 KB	Output is correct
40	Correct	33 ms	19660 KB	Output is correct
41	Correct	23 ms	19660 KB	Output is correct
42	Correct	29 ms	19660 KB	Output is correct
43	Correct	33 ms	19660 KB	Output is correct
44	Correct	26 ms	19660 KB	Output is correct
45	Correct	29 ms	19660 KB	Output is correct
46	Correct	36 ms	19660 KB	Output is correct
47	Correct	29 ms	19660 KB	Output is correct
48	Correct	33 ms	19660 KB	Output is correct
49	Correct	29 ms	19660 KB	Output is correct
50	Correct	36 ms	19660 KB	Output is correct
51	Correct	33 ms	19660 KB	Output is correct
52	Correct	39 ms	19660 KB	Output is correct
53	Correct	29 ms	19660 KB	Output is correct
54	Correct	26 ms	19660 KB	Output is correct

Subtask #3
0 / 58.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	19660 KB	Output is correct
2	Correct	0 ms	19660 KB	Output is correct
3	Correct	0 ms	19660 KB	Output is correct
4	Correct	3 ms	19660 KB	Output is correct
5	Correct	3 ms	19660 KB	Output is correct
6	Correct	0 ms	19660 KB	Output is correct
7	Correct	0 ms	19660 KB	Output is correct
8	Correct	0 ms	19660 KB	Output is correct
9	Correct	0 ms	19660 KB	Output is correct
10	Correct	0 ms	19660 KB	Output is correct
11	Correct	0 ms	19660 KB	Output is correct
12	Correct	3 ms	19660 KB	Output is correct
13	Correct	0 ms	19660 KB	Output is correct
14	Correct	0 ms	19660 KB	Output is correct
15	Correct	0 ms	19660 KB	Output is correct
16	Correct	0 ms	19660 KB	Output is correct
17	Correct	3 ms	19660 KB	Output is correct
18	Correct	0 ms	19660 KB	Output is correct
19	Correct	0 ms	19660 KB	Output is correct
20	Correct	0 ms	19660 KB	Output is correct
21	Correct	0 ms	19660 KB	Output is correct
22	Correct	0 ms	19660 KB	Output is correct
23	Correct	0 ms	19660 KB	Output is correct
24	Correct	0 ms	19660 KB	Output is correct
25	Correct	6 ms	19660 KB	Output is correct
26	Correct	0 ms	19660 KB	Output is correct
27	Correct	3 ms	19660 KB	Output is correct
28	Correct	0 ms	19660 KB	Output is correct
29	Correct	0 ms	19660 KB	Output is correct
30	Correct	3 ms	19660 KB	Output is correct
31	Correct	3 ms	19660 KB	Output is correct
32	Correct	0 ms	19660 KB	Output is correct
33	Correct	0 ms	19660 KB	Output is correct
34	Correct	29 ms	19660 KB	Output is correct
35	Correct	29 ms	19660 KB	Output is correct
36	Correct	29 ms	19660 KB	Output is correct
37	Correct	26 ms	19660 KB	Output is correct
38	Correct	33 ms	19660 KB	Output is correct
39	Correct	29 ms	19660 KB	Output is correct
40	Correct	29 ms	19660 KB	Output is correct
41	Correct	33 ms	19660 KB	Output is correct
42	Correct	29 ms	19660 KB	Output is correct
43	Correct	39 ms	19660 KB	Output is correct
44	Correct	26 ms	19660 KB	Output is correct
45	Correct	29 ms	19660 KB	Output is correct
46	Correct	26 ms	19660 KB	Output is correct
47	Correct	33 ms	19660 KB	Output is correct
48	Correct	29 ms	19660 KB	Output is correct
49	Correct	36 ms	19660 KB	Output is correct
50	Correct	33 ms	19660 KB	Output is correct
51	Correct	29 ms	19660 KB	Output is correct
52	Correct	36 ms	19660 KB	Output is correct
53	Correct	33 ms	19660 KB	Output is correct
54	Correct	33 ms	19660 KB	Output is correct
55	Incorrect	39 ms	19660 KB	Output isn't correct
56	Halted	0 ms	0 KB	-

답안 #31720

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 27.0 / 27.0

Subtask #3 0 / 58.0

Subtask #1
15.0 / 15.0

Subtask #2
27.0 / 27.0

Subtask #3
0 / 58.0