oj.uz

Submission #494771

# Submission time Handle Problem Language Result Execution time Memory
494771 2021-12-16T07:38:42 Z Khizri Fountain Parks (IOI21_parks) C++17
5 / 100
 110 ms 42780 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define F first
#define S second
#define pii pair<int,int>
const int mxn=2e5+100;
int n,color[10][mxn],arr[10][mxn],say,cl[10][mxn];
int l[4]={0,0,2,-2};
int r[4]={2,-2,0,0};
bool qq=true;
vector<int>a,b,c,d;
void bfs(int x,int y){

    queue<pii>q;
    q.push({x,y});
    color[x][y]=1;
    while(q.size()){
        pii p=q.front();
        q.pop();
        x=p.F,y=p.S;
        say++;
        for(int i=0;i<4;i++){
            int u=x+l[i],v=y+r[i];
            if(arr[u][v]&&!color[u][v]){
                a.pb(arr[x][y]-1);
                b.pb(arr[u][v]-1);
                int q1=x-1,q2=v-1;
                if(x!=u){
                    q1=(x+u)/2;
                    if(cl[q1][q2]){
                        q2+=2;
                    }
                }
                else{
                    q2=(y+v)/2;
                    if(cl[q1][q2]){
                        q1+=2;
                    }
                }
                if(cl[q1][q2]){
                    qq=false;
                }
                cl[q1][q2]=1;
                c.pb(q1);
                d.pb(q2);
                q.push({u,v});
                color[u][v]=1;
            }
        }
    }
}
void dfs(int x,int y){
    color[x][y]=1;
    say++;
    for(int i=0;i<4;i++){
        int u=x+l[i],v=y+r[i];
        if(arr[x][y]&&arr[u][v]&&!color[u][v]){
            a.pb(arr[x][y]-1);
            b.pb(arr[u][v]-1);
            int q1=x+1,q2=v+1;
            if(x!=u){
                q1=(x+u)/2;
                if(cl[q1][q2]){
                    q2-=2;
                }
            }
            else{
                q2=(y+v)/2;
                if(cl[q1][q2]){
                    q1-=2;
                }
            }
            if(cl[q1][q2]){
                qq=false;
            }
            cl[q1][q2]=1;
            c.pb(q1);
            d.pb(q2);
            dfs(u,v);
        }
    }
}
int construct_roads(vector<int> x, vector<int> y) {
    n=x.size();
    int a1=-1e7,b1=-1e7,a2=1e7,b2=1e7;
    for(int i=0;i<n;i++){
        a1=max(a1,x[i]);
        b1=max(b1,y[i]);
        a2=min(a2,x[i]);
        b2=min(b2,y[i]);
        arr[x[i]][y[i]]=i+1;
    }
    dfs(a2,b2);
    if(say==n&&qq){
        build(a,b,c,d);
        return 1;
    }
    qq=true;
    say=0;
    memset(color,0,sizeof(color));
    memset(cl,0,sizeof(cl));
    a.clear(),b.clear(),c.clear(),d.clear();
    dfs(a1,b1);
    if(say==n&&qq){
        build(a,b,c,d);
        return 1;
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 9 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 59 ms 21560 KB Output is correct
10 Correct 5 ms 2636 KB Output is correct
11 Correct 28 ms 11808 KB Output is correct
12 Correct 8 ms 3720 KB Output is correct
13 Correct 15 ms 21548 KB Output is correct
14 Correct 7 ms 16076 KB Output is correct
15 Correct 8 ms 16076 KB Output is correct
16 Correct 54 ms 21544 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 9 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 59 ms 21560 KB Output is correct
10 Correct 5 ms 2636 KB Output is correct
11 Correct 28 ms 11808 KB Output is correct
12 Correct 8 ms 3720 KB Output is correct
13 Correct 15 ms 21548 KB Output is correct
14 Correct 7 ms 16076 KB Output is correct
15 Correct 8 ms 16076 KB Output is correct
16 Correct 54 ms 21544 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 8 ms 15948 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 110 ms 42780 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 588 KB Output is correct
26 Correct 7 ms 16204 KB Output is correct
27 Correct 9 ms 16076 KB Output is correct
28 Correct 45 ms 17436 KB Output is correct
29 Correct 62 ms 25772 KB Output is correct
30 Correct 105 ms 34216 KB Output is correct
31 Correct 107 ms 42780 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 6 ms 15948 KB Output is correct
36 Correct 6 ms 15948 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 0 ms 332 KB Output is correct
40 Correct 9 ms 15948 KB Output is correct
41 Correct 7 ms 15948 KB Output is correct
42 Correct 0 ms 284 KB Output is correct
43 Correct 7 ms 16088 KB Output is correct
44 Correct 7 ms 16076 KB Output is correct
45 Incorrect 33 ms 30256 KB Solution announced impossible, but it is possible.
46 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 9 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 59 ms 21560 KB Output is correct
10 Correct 5 ms 2636 KB Output is correct
11 Correct 28 ms 11808 KB Output is correct
12 Correct 8 ms 3720 KB Output is correct
13 Correct 15 ms 21548 KB Output is correct
14 Correct 7 ms 16076 KB Output is correct
15 Correct 8 ms 16076 KB Output is correct
16 Correct 54 ms 21544 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 8 ms 15948 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 110 ms 42780 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 588 KB Output is correct
26 Correct 7 ms 16204 KB Output is correct
27 Correct 9 ms 16076 KB Output is correct
28 Correct 45 ms 17436 KB Output is correct
29 Correct 62 ms 25772 KB Output is correct
30 Correct 105 ms 34216 KB Output is correct
31 Correct 107 ms 42780 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 6 ms 15948 KB Output is correct
36 Correct 6 ms 15948 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 0 ms 332 KB Output is correct
40 Correct 9 ms 15948 KB Output is correct
41 Correct 7 ms 15948 KB Output is correct
42 Correct 0 ms 284 KB Output is correct
43 Correct 7 ms 16088 KB Output is correct
44 Correct 7 ms 16076 KB Output is correct
45 Incorrect 33 ms 30256 KB Solution announced impossible, but it is possible.
46 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 9 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 59 ms 21560 KB Output is correct
10 Correct 5 ms 2636 KB Output is correct
11 Correct 28 ms 11808 KB Output is correct
12 Correct 8 ms 3720 KB Output is correct
13 Correct 15 ms 21548 KB Output is correct
14 Correct 7 ms 16076 KB Output is correct
15 Correct 8 ms 16076 KB Output is correct
16 Correct 54 ms 21544 KB Output is correct
17 Runtime error 1 ms 332 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 9 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 59 ms 21560 KB Output is correct
10 Correct 5 ms 2636 KB Output is correct
11 Correct 28 ms 11808 KB Output is correct
12 Correct 8 ms 3720 KB Output is correct
13 Correct 15 ms 21548 KB Output is correct
14 Correct 7 ms 16076 KB Output is correct
15 Correct 8 ms 16076 KB Output is correct
16 Correct 54 ms 21544 KB Output is correct
17 Runtime error 43 ms 6724 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 9 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 59 ms 21560 KB Output is correct
10 Correct 5 ms 2636 KB Output is correct
11 Correct 28 ms 11808 KB Output is correct
12 Correct 8 ms 3720 KB Output is correct
13 Correct 15 ms 21548 KB Output is correct
14 Correct 7 ms 16076 KB Output is correct
15 Correct 8 ms 16076 KB Output is correct
16 Correct 54 ms 21544 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 8 ms 15948 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 110 ms 42780 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 588 KB Output is correct
26 Correct 7 ms 16204 KB Output is correct
27 Correct 9 ms 16076 KB Output is correct
28 Correct 45 ms 17436 KB Output is correct
29 Correct 62 ms 25772 KB Output is correct
30 Correct 105 ms 34216 KB Output is correct
31 Correct 107 ms 42780 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 6 ms 15948 KB Output is correct
36 Correct 6 ms 15948 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 0 ms 332 KB Output is correct
40 Correct 9 ms 15948 KB Output is correct
41 Correct 7 ms 15948 KB Output is correct
42 Correct 0 ms 284 KB Output is correct
43 Correct 7 ms 16088 KB Output is correct
44 Correct 7 ms 16076 KB Output is correct
45 Incorrect 33 ms 30256 KB Solution announced impossible, but it is possible.
46 Halted 0 ms 0 KB -