oj.uz

Submission #6160

# Submission time Handle Problem Language Result Execution time Memory
6160 2014-06-22T03:18:53 Z ainta Senior Postmen (BOI14_postmen) C++
100 / 100
 397 ms 21344 KB 
#pragma warning(disable:4996)
#include<stdio.h>
#include<algorithm>
int nxt[1000010], ed[1000010], num[500010];
int n, m, used[1000010], v[500010];
int st[500010];
void Do(int start){
    int top = 0, x, y;
    st[++top] = start;
    v[start] = true;
    while (1){
        while (top){
            while (used[num[st[top]]])num[st[top]] = nxt[num[st[top]]];
            if (!num[st[top]]){
                v[st[top]] = false;
                top--;
            }
            else break;
        }
        if (!top)break;
        x = st[top];
        y = ed[num[x]];
        used[num[x]] = used[num[x] ^ 1] = true;
        num[x] = nxt[num[st[top]]];
        if (v[y]){
         
            while (1){
                printf("%d", st[top]);
                if (st[top] == y)break;
              printf(" ");
                v[st[top]] = false;
                top--;
            }
            printf("\n");
            continue;
        }
        else{
            st[++top] = y;
            v[y] = true;
        }
    }
    v[start] = false;
}
int main()
{
    int i, a, b, cnt = 1;
    scanf("%d%d", &n, &m);
    for (i = 0; i < m; i++){
        scanf("%d%d", &a, &b);
        ed[++cnt] = b; nxt[cnt] = num[a]; num[a] = cnt;
        ed[++cnt] = a; nxt[cnt] = num[b]; num[b] = cnt;
    }
    for (i = 1; i <= n; i++){
        Do(i);
    }
    return 0;
}

Compilation message

postmen.cpp:1:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning(disable:4996)
 
postmen.cpp: In function 'int main()':
postmen.cpp:47:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~
postmen.cpp:49:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &a, &b);
         ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 7 ms 512 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 7 ms 512 KB Output is correct
7 Correct 13 ms 768 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 45 ms 3064 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 6 ms 384 KB Output is correct
12 Correct 52 ms 3192 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 6 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 7 ms 560 KB Output is correct
7 Correct 10 ms 768 KB Output is correct
8 Correct 6 ms 512 KB Output is correct
9 Correct 42 ms 3064 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 6 ms 432 KB Output is correct
12 Correct 52 ms 3192 KB Output is correct
13 Correct 52 ms 4476 KB Output is correct
14 Correct 67 ms 3832 KB Output is correct
15 Correct 65 ms 3732 KB Output is correct
16 Correct 52 ms 4472 KB Output is correct
17 Correct 61 ms 3792 KB Output is correct
18 Correct 56 ms 3960 KB Output is correct

Subtask #3
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 6 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 10 ms 768 KB Output is correct
8 Correct 6 ms 512 KB Output is correct
9 Correct 41 ms 3092 KB Output is correct
10 Correct 6 ms 564 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 44 ms 3192 KB Output is correct
13 Correct 51 ms 4448 KB Output is correct
14 Correct 52 ms 3808 KB Output is correct
15 Correct 48 ms 3704 KB Output is correct
16 Correct 50 ms 4472 KB Output is correct
17 Correct 58 ms 3716 KB Output is correct
18 Correct 51 ms 3960 KB Output is correct
19 Correct 317 ms 21320 KB Output is correct
20 Correct 317 ms 18320 KB Output is correct
21 Correct 307 ms 17272 KB Output is correct
22 Correct 383 ms 21344 KB Output is correct
23 Correct 199 ms 13952 KB Output is correct
24 Correct 397 ms 18064 KB Output is correct
25 Correct 319 ms 18780 KB Output is correct