oj.uz

Submission #490207

# Submission time Handle Problem Language Result Execution time Memory
490207 2021-11-26T09:51:33 Z cpp219 Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 187 ms 24048 KB 
#include<bits/stdc++.h>
#include "supertrees.h"
#define ll int
#define ld long double
#define fs first
#define sc second
#define debug(y) cout<<y,exit(0)
using namespace std;
typedef pair<ll,ll> LL;
const ll N = 1e3 + 9;
const ll mod = 1e9 + 7;
const ll base = 31;

vector<vector<ll>> ans;
vector<LL> g1,g2;
ll n,ok[N];

int construct(vector<vector<int>> p){
    n = p.size(); ans = p;
    for (ll i = 0;i < n;i++){
        for (ll j = 0;j < n;j++) ans[i][j] = 0;
    }
    for (ll i = 0;i < n;i++)
        for (ll j = 0;j < n;j++) if (p[i][j] == 3) return 0;

    for (ll i = 0;i < n;i++){
        ll now = 0;
        while(p[i][now] != 1) now++;
        if (now != i){
            if (p[i] != p[now]) return 0;
            ans[now][i] = ans[i][now] = 1;
        }
        else ok[i] = 1;
    }

    for(ll i = 0;i < n;i++) if(ok[i]){
		ll cc = 0;
		while(!p[i][cc]) cc++;
		for(ll j = 0;j < n;j++)
			if((p[cc][j] == 0) ^ (p[i][j] == 0)) return 0;
		if(cc == i){
			ll now = i;
			for(ll j = i + 1;j < n;j++)
				if(ok[j] && p[i][j]){
					ans[now][j] = 1; ans[j][now] = 1;
					now = j;
				}

			if(now == i);
			else if(ans[now][i]) return 0;
			else{
				ans[now][i] = 1; ans[i][now] = 1;
			}
		}
	}
    build(ans);
    return 1;
}
/*
int main(){
    ios_base::sync_with_stdio(NULL); cin.tie(0); cout.tie(0);
    #define task "test"
    if (fopen(task".inp","r")){
        freopen(task".inp","r",stdin);
        //freopen(task".out","w",stdout);
    }
    ll sz; vector<vector<ll>> p;
    cin>>sz;
    for (ll i = 0;i < sz;i++){
        vector<ll> tmp; ll x;
        for (ll j = 0;j < sz;j++) cin>>x,tmp.push_back(x);
        p.push_back(tmp);
    }
    cout<<construct(p)<<"\n";
}
*/
/* stuff you should look for
	* int overflow, array bounds
	* special cases (n=1?)
	* do smth instead of nothing and stay organized
	* WRITE STUFF DOWN
	* DON'T GET STUCK ON ONE APPROACH
*/

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 7 ms 1100 KB Output is correct
7 Correct 166 ms 22020 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 7 ms 1100 KB Output is correct
7 Correct 166 ms 22020 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1100 KB Output is correct
13 Correct 167 ms 22028 KB Output is correct
14 Correct 0 ms 220 KB Output is correct
15 Correct 0 ms 216 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 76 ms 12032 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 44 ms 5752 KB Output is correct
21 Correct 165 ms 21956 KB Output is correct
22 Correct 167 ms 21984 KB Output is correct
23 Correct 177 ms 22016 KB Output is correct
24 Correct 171 ms 22024 KB Output is correct
25 Correct 74 ms 12028 KB Output is correct
26 Correct 70 ms 12028 KB Output is correct
27 Correct 176 ms 22028 KB Output is correct
28 Correct 176 ms 22028 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 292 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 8 ms 1208 KB Output is correct
9 Correct 167 ms 23968 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 8 ms 1172 KB Output is correct
13 Correct 169 ms 23920 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 3 ms 856 KB Output is correct
17 Correct 77 ms 14092 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 216 KB Output is correct
20 Correct 0 ms 216 KB Output is correct
21 Correct 44 ms 6220 KB Output is correct
22 Correct 168 ms 23936 KB Output is correct
23 Correct 166 ms 23984 KB Output is correct
24 Correct 177 ms 23916 KB Output is correct
25 Correct 70 ms 14068 KB Output is correct
26 Correct 70 ms 14068 KB Output is correct
27 Correct 173 ms 23984 KB Output is correct
28 Correct 187 ms 23920 KB Output is correct
29 Correct 75 ms 14000 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 44 ms 6248 KB Output is correct
5 Correct 172 ms 24008 KB Output is correct
6 Correct 180 ms 23952 KB Output is correct
7 Correct 174 ms 23972 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 44 ms 6212 KB Output is correct
10 Correct 173 ms 24048 KB Output is correct
11 Correct 166 ms 23944 KB Output is correct
12 Correct 175 ms 23928 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 43 ms 6160 KB Output is correct
17 Correct 187 ms 24048 KB Output is correct
18 Correct 173 ms 23920 KB Output is correct
19 Correct 165 ms 23932 KB Output is correct
20 Correct 171 ms 23888 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 7 ms 1100 KB Output is correct
7 Correct 166 ms 22020 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1100 KB Output is correct
13 Correct 167 ms 22028 KB Output is correct
14 Correct 0 ms 220 KB Output is correct
15 Correct 0 ms 216 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 76 ms 12032 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 44 ms 5752 KB Output is correct
21 Correct 165 ms 21956 KB Output is correct
22 Correct 167 ms 21984 KB Output is correct
23 Correct 177 ms 22016 KB Output is correct
24 Correct 171 ms 22024 KB Output is correct
25 Correct 74 ms 12028 KB Output is correct
26 Correct 70 ms 12028 KB Output is correct
27 Correct 176 ms 22028 KB Output is correct
28 Correct 176 ms 22028 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 292 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 8 ms 1208 KB Output is correct
37 Correct 167 ms 23968 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 8 ms 1172 KB Output is correct
41 Correct 169 ms 23920 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Correct 0 ms 208 KB Output is correct
44 Correct 3 ms 856 KB Output is correct
45 Correct 77 ms 14092 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 216 KB Output is correct
48 Correct 0 ms 216 KB Output is correct
49 Correct 44 ms 6220 KB Output is correct
50 Correct 168 ms 23936 KB Output is correct
51 Correct 166 ms 23984 KB Output is correct
52 Correct 177 ms 23916 KB Output is correct
53 Correct 70 ms 14068 KB Output is correct
54 Correct 70 ms 14068 KB Output is correct
55 Correct 173 ms 23984 KB Output is correct
56 Correct 187 ms 23920 KB Output is correct
57 Correct 75 ms 14000 KB Output is correct
58 Correct 0 ms 204 KB Output is correct
59 Correct 0 ms 296 KB Output is correct
60 Correct 3 ms 844 KB Output is correct
61 Correct 76 ms 14064 KB Output is correct
62 Correct 0 ms 204 KB Output is correct
63 Correct 0 ms 204 KB Output is correct
64 Correct 0 ms 204 KB Output is correct
65 Correct 44 ms 6136 KB Output is correct
66 Correct 71 ms 14072 KB Output is correct
67 Correct 75 ms 14064 KB Output is correct
68 Correct 72 ms 14064 KB Output is correct
69 Correct 70 ms 14060 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 7 ms 1100 KB Output is correct
7 Correct 166 ms 22020 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1100 KB Output is correct
13 Correct 167 ms 22028 KB Output is correct
14 Correct 0 ms 220 KB Output is correct
15 Correct 0 ms 216 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 76 ms 12032 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 44 ms 5752 KB Output is correct
21 Correct 165 ms 21956 KB Output is correct
22 Correct 167 ms 21984 KB Output is correct
23 Correct 177 ms 22016 KB Output is correct
24 Correct 171 ms 22024 KB Output is correct
25 Correct 74 ms 12028 KB Output is correct
26 Correct 70 ms 12028 KB Output is correct
27 Correct 176 ms 22028 KB Output is correct
28 Correct 176 ms 22028 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 292 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 8 ms 1208 KB Output is correct
37 Correct 167 ms 23968 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 8 ms 1172 KB Output is correct
41 Correct 169 ms 23920 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Correct 0 ms 208 KB Output is correct
44 Correct 3 ms 856 KB Output is correct
45 Correct 77 ms 14092 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 216 KB Output is correct
48 Correct 0 ms 216 KB Output is correct
49 Correct 44 ms 6220 KB Output is correct
50 Correct 168 ms 23936 KB Output is correct
51 Correct 166 ms 23984 KB Output is correct
52 Correct 177 ms 23916 KB Output is correct
53 Correct 70 ms 14068 KB Output is correct
54 Correct 70 ms 14068 KB Output is correct
55 Correct 173 ms 23984 KB Output is correct
56 Correct 187 ms 23920 KB Output is correct
57 Correct 75 ms 14000 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 0 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 44 ms 6248 KB Output is correct
62 Correct 172 ms 24008 KB Output is correct
63 Correct 180 ms 23952 KB Output is correct
64 Correct 174 ms 23972 KB Output is correct
65 Correct 0 ms 204 KB Output is correct
66 Correct 44 ms 6212 KB Output is correct
67 Correct 173 ms 24048 KB Output is correct
68 Correct 166 ms 23944 KB Output is correct
69 Correct 175 ms 23928 KB Output is correct
70 Correct 0 ms 204 KB Output is correct
71 Correct 0 ms 204 KB Output is correct
72 Correct 0 ms 204 KB Output is correct
73 Correct 43 ms 6160 KB Output is correct
74 Correct 187 ms 24048 KB Output is correct
75 Correct 173 ms 23920 KB Output is correct
76 Correct 165 ms 23932 KB Output is correct
77 Correct 171 ms 23888 KB Output is correct
78 Correct 0 ms 204 KB Output is correct
79 Correct 0 ms 296 KB Output is correct
80 Correct 3 ms 844 KB Output is correct
81 Correct 76 ms 14064 KB Output is correct
82 Correct 0 ms 204 KB Output is correct
83 Correct 0 ms 204 KB Output is correct
84 Correct 0 ms 204 KB Output is correct
85 Correct 44 ms 6136 KB Output is correct
86 Correct 71 ms 14072 KB Output is correct
87 Correct 75 ms 14064 KB Output is correct
88 Correct 72 ms 14064 KB Output is correct
89 Correct 70 ms 14060 KB Output is correct
90 Correct 0 ms 204 KB Output is correct
91 Correct 0 ms 204 KB Output is correct
92 Correct 5 ms 844 KB Output is correct
93 Correct 79 ms 14080 KB Output is correct
94 Correct 0 ms 204 KB Output is correct
95 Correct 0 ms 204 KB Output is correct
96 Correct 0 ms 204 KB Output is correct
97 Correct 18 ms 3704 KB Output is correct
98 Correct 70 ms 14060 KB Output is correct
99 Correct 71 ms 14060 KB Output is correct
100 Correct 70 ms 14060 KB Output is correct
101 Correct 68 ms 14072 KB Output is correct
102 Correct 67 ms 14064 KB Output is correct
103 Correct 67 ms 14064 KB Output is correct
104 Correct 71 ms 14080 KB Output is correct
105 Correct 73 ms 14076 KB Output is correct