oj.uz

Submission #98424

# Submission time Handle Problem Language Result Execution time Memory
98424 2019-02-23T12:39:56 Z Kastanda Senior Postmen (BOI14_postmen) C++11
100 / 100
 439 ms 33164 KB 
#include<bits/stdc++.h>
using namespace std;
const int N = 500005;
int n, m, ets, cyc, to[N + N], M[N], S[N];
int head[N], nxt[N + N];
int cnt = 0;
void DFS(int v)
{
    cnt ++;
    assert(cnt <= m + n);
    S[v] = 1;
    #define id (head[v])
    #define u (to[id])
    for (; ~head[v]; head[v] = nxt[head[v]])
    {
        if (M[id >> 1]) continue;
        M[id >> 1] = 1;
        if (S[u])
        {
            cyc = u; S[v] = 0;
            head[v] = nxt[head[v]];
            printf("%d", v);
            return ;
        }
        DFS(u);
        if (cyc)
            printf(" %d", v);
        if (cyc != v)
        {
            S[v] = 0;
            head[v] = nxt[head[v]];
            return ;
        }
        else
            cyc = 0, printf("\n");
    }
    #undef id
    #undef u
    S[v] = 0;
}
inline void Add(int v, int u)
{
    to[ets] = u;
    nxt[ets] = head[v];
    head[v] = ets; ets ++;
}
int main()
{
    scanf("%d%d", &n, &m);
    memset(head, -1, sizeof(head));
    for (int i = 1; i <= m; i++)
    {
        int v, u;
        scanf("%d%d", &v, &u);
        Add(v, u); Add(u, v);
    }
    for (int i = 1; i <= n; i++)
        DFS(i);
    return 0;
}

Compilation message

postmen.cpp: In function 'int main()':
postmen.cpp:49:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~
postmen.cpp:54:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &v, &u);
         ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2304 KB Output is correct
2 Correct 6 ms 2304 KB Output is correct
3 Correct 6 ms 2304 KB Output is correct
4 Correct 6 ms 2432 KB Output is correct
5 Correct 6 ms 2304 KB Output is correct
6 Correct 9 ms 2432 KB Output is correct
7 Correct 12 ms 2688 KB Output is correct
8 Correct 8 ms 2432 KB Output is correct
9 Correct 42 ms 4600 KB Output is correct
10 Correct 8 ms 2432 KB Output is correct
11 Correct 6 ms 2432 KB Output is correct
12 Correct 47 ms 4704 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2304 KB Output is correct
2 Correct 5 ms 2304 KB Output is correct
3 Correct 6 ms 2304 KB Output is correct
4 Correct 9 ms 2480 KB Output is correct
5 Correct 6 ms 2304 KB Output is correct
6 Correct 8 ms 2432 KB Output is correct
7 Correct 11 ms 2688 KB Output is correct
8 Correct 8 ms 2432 KB Output is correct
9 Correct 49 ms 4652 KB Output is correct
10 Correct 7 ms 2432 KB Output is correct
11 Correct 6 ms 2432 KB Output is correct
12 Correct 54 ms 4744 KB Output is correct
13 Correct 53 ms 8440 KB Output is correct
14 Correct 56 ms 5200 KB Output is correct
15 Correct 60 ms 4984 KB Output is correct
16 Correct 64 ms 8440 KB Output is correct
17 Correct 72 ms 5112 KB Output is correct
18 Correct 55 ms 5880 KB Output is correct

Subtask #3
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 2304 KB Output is correct
2 Correct 6 ms 2304 KB Output is correct
3 Correct 6 ms 2304 KB Output is correct
4 Correct 7 ms 2432 KB Output is correct
5 Correct 7 ms 2304 KB Output is correct
6 Correct 7 ms 2432 KB Output is correct
7 Correct 15 ms 2688 KB Output is correct
8 Correct 8 ms 2432 KB Output is correct
9 Correct 66 ms 4612 KB Output is correct
10 Correct 9 ms 2432 KB Output is correct
11 Correct 9 ms 2432 KB Output is correct
12 Correct 52 ms 4760 KB Output is correct
13 Correct 87 ms 8440 KB Output is correct
14 Correct 71 ms 5272 KB Output is correct
15 Correct 68 ms 5008 KB Output is correct
16 Correct 77 ms 8428 KB Output is correct
17 Correct 95 ms 5112 KB Output is correct
18 Correct 77 ms 5912 KB Output is correct
19 Correct 405 ms 33164 KB Output is correct
20 Correct 394 ms 16920 KB Output is correct
21 Correct 336 ms 15996 KB Output is correct
22 Correct 394 ms 33068 KB Output is correct
23 Correct 216 ms 14080 KB Output is correct
24 Correct 439 ms 16632 KB Output is correct
25 Correct 421 ms 20728 KB Output is correct