oj.uz

Submission #203165

# Submission time Handle Problem Language Result Execution time Memory
203165 2020-02-19T15:28:13 Z alexandra_udristoiu Tropical Garden (IOI11_garden) C++14
100 / 100
 3362 ms 38672 KB 
#include<fstream>
#include<vector>
#include<cstring>
#include "garden.h"
#include "gardenlib.h"
#define DIM 300005
using namespace std;
static int viz[2][DIM], dist[2][DIM], t[DIM], cic[DIM], nrcic[DIM], pos[DIM], viz2[DIM];
static pair<int, int> p[DIM][2];
static vector<int> v[DIM];
static void dfs(int nod, int t){
    viz[t][nod] = 1;
    for(int i = 0; i < v[nod].size(); i++){
        int vecin = v[nod][i];
        if(viz[t][vecin] == 0){
            dist[t][vecin] = 1 + dist[t][nod];
            dfs(vecin, t);
        }
    }
}
static void calcp(int i, int x, int y){
    if(p[x][0].first == 0){
        p[x][0] = make_pair(i, y);
    }
    else{
        if(p[x][1].first == 0){
            p[x][1] = make_pair(i, y);
        }
    }
}
static void calct(int x, pair<int, int> curr){
    if(p[ curr.second ][0].first == curr.first && p[ curr.second ][1].first != 0){
        t[x] = 2 * curr.second;
    }
    else{
        t[x] = 2 * curr.second - 1;
    }
}
void count_routes(int n, int m, int d, int w[][2], int q, int g[]){
    int i, x, k, j, sol, ii;
    d++;
    for(i = 0; i < m; i++){
        w[i][0]++;
        w[i][1]++;
        calcp(i + 1, w[i][0], w[i][1]);
        calcp(i + 1, w[i][1], w[i][0]);
    }
    for(i = 1; i <= n; i++){
        calct(2 * i - 1, p[i][0]);
        if(p[i][1].first != 0){
            calct(2 * i, p[i][1]);
        }
        else{
            t[2 * i] = 2 * i;
        }
    }
    k = 0;
    for(i = 1; i <= 2 * n; i++){
        v[ t[i] ].push_back(i);
        x = i;
        while(viz2[x] == 0){
            viz2[x] = 1;
            pos[x] = i;
            x = t[x];
        }
        if(pos[x] == i){
            k++;
            while(viz2[x] != 2){
                viz2[x] = 2;
                cic[x] = k;
                nrcic[k]++;
                x = t[x];
            }
        }
    }
    dfs(2 * d - 1, 0);
    dfs(2 * d, 1);
    for(i = 0; i < q; i++){
        sol = 0;
        for(x = 2 * d - 1, ii = 0; ii <= 1; ii++, x++){
            for(j = 1; j <= 2 * n; j += 2){
                if(cic[x] != 0){
                    if(viz[ii][j] == 1 && dist[ii][j] <= g[i] && (dist[ii][j] - g[i]) % nrcic[ cic[x] ] == 0){
                        sol++;
                    }
                }
                else{
                    if(viz[ii][j] == 1 && dist[ii][j] == g[i]){
                        sol++;
                    }
                }
            }
        }
        answer(sol);
    }
}

Compilation message

garden.cpp: In function 'void dfs(int, int)':
garden.cpp:13:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < v[nod].size(); i++){
                    ~~^~~~~~~~~~~~~~~

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 7544 KB Output is correct
2 Correct 10 ms 7544 KB Output is correct
3 Correct 11 ms 7544 KB Output is correct
4 Correct 9 ms 7416 KB Output is correct
5 Correct 9 ms 7416 KB Output is correct
6 Correct 10 ms 7672 KB Output is correct
7 Correct 9 ms 7416 KB Output is correct
8 Correct 10 ms 7544 KB Output is correct
9 Correct 11 ms 7672 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 7544 KB Output is correct
2 Correct 10 ms 7544 KB Output is correct
3 Correct 11 ms 7544 KB Output is correct
4 Correct 9 ms 7416 KB Output is correct
5 Correct 9 ms 7416 KB Output is correct
6 Correct 10 ms 7672 KB Output is correct
7 Correct 9 ms 7416 KB Output is correct
8 Correct 10 ms 7544 KB Output is correct
9 Correct 11 ms 7672 KB Output is correct
10 Correct 9 ms 7416 KB Output is correct
11 Correct 20 ms 10360 KB Output is correct
12 Correct 34 ms 12280 KB Output is correct
13 Correct 60 ms 29048 KB Output is correct
14 Correct 121 ms 24100 KB Output is correct
15 Correct 152 ms 25720 KB Output is correct
16 Correct 109 ms 18424 KB Output is correct
17 Correct 100 ms 17528 KB Output is correct
18 Correct 37 ms 11768 KB Output is correct
19 Correct 118 ms 25336 KB Output is correct
20 Correct 153 ms 25848 KB Output is correct
21 Correct 112 ms 18272 KB Output is correct
22 Correct 103 ms 17656 KB Output is correct
23 Correct 124 ms 25340 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 7544 KB Output is correct
2 Correct 10 ms 7544 KB Output is correct
3 Correct 11 ms 7544 KB Output is correct
4 Correct 9 ms 7416 KB Output is correct
5 Correct 9 ms 7416 KB Output is correct
6 Correct 10 ms 7672 KB Output is correct
7 Correct 9 ms 7416 KB Output is correct
8 Correct 10 ms 7544 KB Output is correct
9 Correct 11 ms 7672 KB Output is correct
10 Correct 9 ms 7416 KB Output is correct
11 Correct 20 ms 10360 KB Output is correct
12 Correct 34 ms 12280 KB Output is correct
13 Correct 60 ms 29048 KB Output is correct
14 Correct 121 ms 24100 KB Output is correct
15 Correct 152 ms 25720 KB Output is correct
16 Correct 109 ms 18424 KB Output is correct
17 Correct 100 ms 17528 KB Output is correct
18 Correct 37 ms 11768 KB Output is correct
19 Correct 118 ms 25336 KB Output is correct
20 Correct 153 ms 25848 KB Output is correct
21 Correct 112 ms 18272 KB Output is correct
22 Correct 103 ms 17656 KB Output is correct
23 Correct 124 ms 25340 KB Output is correct
24 Correct 10 ms 7416 KB Output is correct
25 Correct 156 ms 10104 KB Output is correct
26 Correct 231 ms 12024 KB Output is correct
27 Correct 2672 ms 28284 KB Output is correct
28 Correct 1235 ms 27512 KB Output is correct
29 Correct 3298 ms 27768 KB Output is correct
30 Correct 1944 ms 20292 KB Output is correct
31 Correct 1918 ms 19448 KB Output is correct
32 Correct 160 ms 12408 KB Output is correct
33 Correct 1204 ms 26360 KB Output is correct
34 Correct 3362 ms 27640 KB Output is correct
35 Correct 2084 ms 20344 KB Output is correct
36 Correct 2438 ms 19324 KB Output is correct
37 Correct 1088 ms 27252 KB Output is correct
38 Correct 2956 ms 38672 KB Output is correct