oj.uz

Submission #739433

# Submission time Handle Problem Language Result Execution time Memory
739433 2023-05-10T12:56:21 Z Dan4Life Tropical Garden (IOI11_garden) C++17
100 / 100
 2645 ms 45132 KB 
#include "garden.h"
#include "gardenlib.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define se second
#define sz(a) (int)a.size()

const int mxN = (int)3e5+10;
int n, m, t;
bool vis[2][mxN];
vector<int> adj[mxN];
int mov[2][mxN], dis[2][mxN], c[2];
vector<pair<int,int>> adj2[mxN];

void dfs(int s, int i, int dep=0){
    dis[i][s] = dep; vis[i][s] = 1;
    for(auto u : adj[s]){
        if(u==i*n+t) c[i] = dep+1;
        if(!vis[i][u]) dfs(u,i,dep+1);
    }
}

void count_routes(int N, int M, int P, int R[][2], int q, int G[]){
    n = N, m = M; t = P;
    memset(dis,-1,sizeof(dis)); c[0]=c[1]=-1;
    for(int i = 0; i < m; i++){
        adj2[R[i][0]].pb({i,R[i][1]});
        adj2[R[i][1]].pb({i,R[i][0]});
    }
    for(int i = 0; i < n; i++){
        sort(begin(adj2[i]),end(adj2[i]));
        mov[0][i] = adj2[i][0].se;
        mov[1][i] = adj2[i][sz(adj2[i])>1].se;
    }
    for(int i = 0; i < n; i++){
        bool ok = (i==mov[0][mov[0][i]]);
        adj[n*ok+mov[0][i]].pb(i);
        ok = (i==mov[0][mov[1][i]]);
        adj[n*ok+mov[1][i]].pb(n+i);
    }
    dfs(t,0); dfs(n+t,1);
    for(int i = 0; i < q; i++){
        int k = G[i], tot = 0;
        for(int j = 0; j < n; j++){
            for(int l = 0; l < 2; l++){
                bool ok = 1;
                if(dis[l][j]==-1) ok=0;
                else if(c[l]==-1) ok = (dis[l][j]==k);
                else{
                    int rem = k-dis[l][j];
                    ok = (rem%c[l]==0 and rem>=0);
                }
                if(ok) {tot++; break;}
            }
        }
        answer(tot);
    }
}

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16852 KB Output is correct
2 Correct 8 ms 16848 KB Output is correct
3 Correct 8 ms 16852 KB Output is correct
4 Correct 8 ms 16724 KB Output is correct
5 Correct 8 ms 16712 KB Output is correct
6 Correct 9 ms 16980 KB Output is correct
7 Correct 8 ms 16716 KB Output is correct
8 Correct 8 ms 16848 KB Output is correct
9 Correct 10 ms 17132 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16852 KB Output is correct
2 Correct 8 ms 16848 KB Output is correct
3 Correct 8 ms 16852 KB Output is correct
4 Correct 8 ms 16724 KB Output is correct
5 Correct 8 ms 16712 KB Output is correct
6 Correct 9 ms 16980 KB Output is correct
7 Correct 8 ms 16716 KB Output is correct
8 Correct 8 ms 16848 KB Output is correct
9 Correct 10 ms 17132 KB Output is correct
10 Correct 8 ms 16724 KB Output is correct
11 Correct 19 ms 19160 KB Output is correct
12 Correct 30 ms 21048 KB Output is correct
13 Correct 46 ms 37964 KB Output is correct
14 Correct 89 ms 30776 KB Output is correct
15 Correct 129 ms 31092 KB Output is correct
16 Correct 97 ms 28100 KB Output is correct
17 Correct 83 ms 27184 KB Output is correct
18 Correct 30 ms 21132 KB Output is correct
19 Correct 83 ms 30796 KB Output is correct
20 Correct 114 ms 31080 KB Output is correct
21 Correct 95 ms 27836 KB Output is correct
22 Correct 78 ms 27096 KB Output is correct
23 Correct 102 ms 31900 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16852 KB Output is correct
2 Correct 8 ms 16848 KB Output is correct
3 Correct 8 ms 16852 KB Output is correct
4 Correct 8 ms 16724 KB Output is correct
5 Correct 8 ms 16712 KB Output is correct
6 Correct 9 ms 16980 KB Output is correct
7 Correct 8 ms 16716 KB Output is correct
8 Correct 8 ms 16848 KB Output is correct
9 Correct 10 ms 17132 KB Output is correct
10 Correct 8 ms 16724 KB Output is correct
11 Correct 19 ms 19160 KB Output is correct
12 Correct 30 ms 21048 KB Output is correct
13 Correct 46 ms 37964 KB Output is correct
14 Correct 89 ms 30776 KB Output is correct
15 Correct 129 ms 31092 KB Output is correct
16 Correct 97 ms 28100 KB Output is correct
17 Correct 83 ms 27184 KB Output is correct
18 Correct 30 ms 21132 KB Output is correct
19 Correct 83 ms 30796 KB Output is correct
20 Correct 114 ms 31080 KB Output is correct
21 Correct 95 ms 27836 KB Output is correct
22 Correct 78 ms 27096 KB Output is correct
23 Correct 102 ms 31900 KB Output is correct
24 Correct 10 ms 16724 KB Output is correct
25 Correct 163 ms 19252 KB Output is correct
26 Correct 241 ms 21180 KB Output is correct
27 Correct 2194 ms 37988 KB Output is correct
28 Correct 1279 ms 30852 KB Output is correct
29 Correct 2498 ms 31216 KB Output is correct
30 Correct 1424 ms 28240 KB Output is correct
31 Correct 1464 ms 27208 KB Output is correct
32 Correct 255 ms 21172 KB Output is correct
33 Correct 1352 ms 30924 KB Output is correct
34 Correct 2645 ms 31200 KB Output is correct
35 Correct 1598 ms 28056 KB Output is correct
36 Correct 1533 ms 27168 KB Output is correct
37 Correct 1271 ms 31928 KB Output is correct
38 Correct 2082 ms 45132 KB Output is correct