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Submission #431508

# Submission time Handle Problem Language Result Execution time Memory
431508 2021-06-17T12:29:28 Z MOUF_MAHMALAT Connecting Supertrees (IOI20_supertrees) C++14
40 / 100
 294 ms 22444 KB 
#include "supertrees.h"
#include<bits/stdc++.h>
using namespace std;
typedef int ll;
vector<vector<ll> >ans,v,w;
vector<pair<ll,ll> >op;
ll n,p1[1009],p2[1009];
ll gp1(ll z)
{
    if(p1[z]==z)
        return z;
    return p1[z]=gp1(p1[z]);
}
ll gp2(ll z)
{
    if(p2[z]==z)
        return z;
    return p2[z]=gp2(p2[z]);
}
void mrg1(ll x,ll y)
{
    x=gp1(x),y=gp1(y);
    if(x==y)
        return;
    if(v[y].size()>v[x].size())
        swap(x,y);
    p1[y]=x;
    for(auto z:v[y])
        v[x].push_back(z);
}
void mrg2(ll x,ll y)
{
    x=gp2(x),y=gp2(y);
    if(x==y)
        return;
    if(w[y].size()>w[x].size())
        swap(x,y);
    p2[y]=x;
    for(auto z:w[y])
        w[x].push_back(z);
}
int construct(vector<vector<int> > pp)
{
    n=pp.size();
    v.resize(n);
    w.resize(n);
    ans.resize(n);

    for(ll i=0; i<n; i++)
        ans[i].resize(n);

    for(ll i=0; i<n; i++)
        p1[i]=p2[i]=i,w[i].push_back(i),v[i]=w[i];

    for(ll i=0; i<n; i++)
        for(ll j=0; j<n; j++)
        {
            if(i==j)
                continue;
            if(pp[i][j]==3)
                return 0;
            if(pp[i][j]==1)
                mrg1(i,j);
            else if(pp[i][j]==2)
                mrg2(i,j);
        }
    for(ll i=0; i<n; i++)
    {
        if(p1[i]==i)
        {
            for(ll j=0; j<v[i].size()-1; j++)
                op.push_back({v[i][j],v[i][j+1]});
        }
        if(p2[i]==i&&w[i].size()>1)
        {
            if(w[i].size()<3)
                return 0;
            for(ll j=0; j<w[i].size()-1; j++)
                op.push_back({w[i][j],w[i][j+1]});
            op.push_back({w[i][0],w[i].back()});
        }
    }
    for(ll i=0; i<n; i++)
        for(ll j=0; j<n; j++)
        {
            if(pp[i][j]!=0)
                continue;
            ll x=gp1(i),y=gp1(j);
            if(x==y)
                return 0;
            ll xx=gp2(i),yy=gp2(j);
            if(xx==yy)
                return 0;
        }
    for(auto z:op)
        ans[z.first][z.second]=ans[z.second][z.first]=1;
    build(ans);
    return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:71:26: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |             for(ll j=0; j<v[i].size()-1; j++)
      |                         ~^~~~~~~~~~~~~~
supertrees.cpp:78:26: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |             for(ll j=0; j<w[i].size()-1; j++)
      |                         ~^~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 224 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1220 KB Output is correct
7 Correct 253 ms 22136 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 224 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1220 KB Output is correct
7 Correct 253 ms 22136 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1100 KB Output is correct
13 Correct 267 ms 22092 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 6 ms 716 KB Output is correct
17 Correct 119 ms 12164 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 61 ms 5772 KB Output is correct
21 Correct 268 ms 22144 KB Output is correct
22 Correct 265 ms 22088 KB Output is correct
23 Correct 286 ms 22144 KB Output is correct
24 Correct 257 ms 22084 KB Output is correct
25 Correct 99 ms 12156 KB Output is correct
26 Correct 94 ms 12236 KB Output is correct
27 Correct 261 ms 22180 KB Output is correct
28 Correct 264 ms 22140 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 284 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 10 ms 1132 KB Output is correct
9 Correct 277 ms 22120 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1100 KB Output is correct
13 Correct 277 ms 22064 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 5 ms 716 KB Output is correct
17 Correct 116 ms 12156 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 63 ms 5744 KB Output is correct
22 Correct 255 ms 22116 KB Output is correct
23 Correct 249 ms 22084 KB Output is correct
24 Correct 276 ms 22096 KB Output is correct
25 Correct 97 ms 12160 KB Output is correct
26 Correct 113 ms 12160 KB Output is correct
27 Correct 244 ms 22240 KB Output is correct
28 Correct 264 ms 22152 KB Output is correct
29 Correct 96 ms 12176 KB Output is correct

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 224 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 80 ms 6108 KB Output is correct
5 Correct 265 ms 22444 KB Output is correct
6 Correct 269 ms 22372 KB Output is correct
7 Correct 294 ms 22380 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 63 ms 6048 KB Output is correct
10 Correct 249 ms 22440 KB Output is correct
11 Correct 266 ms 22404 KB Output is correct
12 Correct 270 ms 22440 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Incorrect 1 ms 248 KB Too many ways to get from 0 to 4, should be 1 found no less than 2
16 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 224 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1220 KB Output is correct
7 Correct 253 ms 22136 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1100 KB Output is correct
13 Correct 267 ms 22092 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 6 ms 716 KB Output is correct
17 Correct 119 ms 12164 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 61 ms 5772 KB Output is correct
21 Correct 268 ms 22144 KB Output is correct
22 Correct 265 ms 22088 KB Output is correct
23 Correct 286 ms 22144 KB Output is correct
24 Correct 257 ms 22084 KB Output is correct
25 Correct 99 ms 12156 KB Output is correct
26 Correct 94 ms 12236 KB Output is correct
27 Correct 261 ms 22180 KB Output is correct
28 Correct 264 ms 22140 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 284 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1132 KB Output is correct
37 Correct 277 ms 22120 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 10 ms 1100 KB Output is correct
41 Correct 277 ms 22064 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 5 ms 716 KB Output is correct
45 Correct 116 ms 12156 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 0 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 63 ms 5744 KB Output is correct
50 Correct 255 ms 22116 KB Output is correct
51 Correct 249 ms 22084 KB Output is correct
52 Correct 276 ms 22096 KB Output is correct
53 Correct 97 ms 12160 KB Output is correct
54 Correct 113 ms 12160 KB Output is correct
55 Correct 244 ms 22240 KB Output is correct
56 Correct 264 ms 22152 KB Output is correct
57 Correct 96 ms 12176 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 5 ms 716 KB Output is correct
61 Correct 137 ms 12304 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Incorrect 82 ms 6052 KB Too many ways to get from 1 to 183, should be 1 found no less than 2
66 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 224 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1220 KB Output is correct
7 Correct 253 ms 22136 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1100 KB Output is correct
13 Correct 267 ms 22092 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 6 ms 716 KB Output is correct
17 Correct 119 ms 12164 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 61 ms 5772 KB Output is correct
21 Correct 268 ms 22144 KB Output is correct
22 Correct 265 ms 22088 KB Output is correct
23 Correct 286 ms 22144 KB Output is correct
24 Correct 257 ms 22084 KB Output is correct
25 Correct 99 ms 12156 KB Output is correct
26 Correct 94 ms 12236 KB Output is correct
27 Correct 261 ms 22180 KB Output is correct
28 Correct 264 ms 22140 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 284 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1132 KB Output is correct
37 Correct 277 ms 22120 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 10 ms 1100 KB Output is correct
41 Correct 277 ms 22064 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 5 ms 716 KB Output is correct
45 Correct 116 ms 12156 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 0 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 63 ms 5744 KB Output is correct
50 Correct 255 ms 22116 KB Output is correct
51 Correct 249 ms 22084 KB Output is correct
52 Correct 276 ms 22096 KB Output is correct
53 Correct 97 ms 12160 KB Output is correct
54 Correct 113 ms 12160 KB Output is correct
55 Correct 244 ms 22240 KB Output is correct
56 Correct 264 ms 22152 KB Output is correct
57 Correct 96 ms 12176 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 224 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 80 ms 6108 KB Output is correct
62 Correct 265 ms 22444 KB Output is correct
63 Correct 269 ms 22372 KB Output is correct
64 Correct 294 ms 22380 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 63 ms 6048 KB Output is correct
67 Correct 249 ms 22440 KB Output is correct
68 Correct 266 ms 22404 KB Output is correct
69 Correct 270 ms 22440 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 1 ms 204 KB Output is correct
72 Incorrect 1 ms 248 KB Too many ways to get from 0 to 4, should be 1 found no less than 2
73 Halted 0 ms 0 KB -