oj.uz

Submission #6159

# Submission time Handle Problem Language Result Execution time Memory
6159 2014-06-21T22:06:41 Z ainta Senior Postmen (BOI14_postmen) C++
100 / 100
 395 ms 21368 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;
				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:45:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
postmen.cpp:47:8: 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 352 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 6 ms 384 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 8 ms 512 KB Output is correct
7 Correct 13 ms 800 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 63 ms 3040 KB Output is correct
10 Correct 6 ms 488 KB Output is correct
11 Correct 6 ms 384 KB Output is correct
12 Correct 44 ms 3192 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 356 KB Output is correct
2 Correct 5 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 6 ms 384 KB Output is correct
6 Correct 7 ms 512 KB Output is correct
7 Correct 11 ms 768 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 41 ms 3048 KB Output is correct
10 Correct 7 ms 512 KB Output is correct
11 Correct 7 ms 384 KB Output is correct
12 Correct 44 ms 3192 KB Output is correct
13 Correct 52 ms 4472 KB Output is correct
14 Correct 53 ms 3828 KB Output is correct
15 Correct 48 ms 3704 KB Output is correct
16 Correct 54 ms 4472 KB Output is correct
17 Correct 57 ms 3808 KB Output is correct
18 Correct 60 ms 3964 KB Output is correct

Subtask #3
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 288 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 6 ms 512 KB Output is correct
7 Correct 10 ms 768 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 40 ms 3040 KB Output is correct
10 Correct 6 ms 512 KB Output is correct
11 Correct 6 ms 512 KB Output is correct
12 Correct 48 ms 3192 KB Output is correct
13 Correct 53 ms 4448 KB Output is correct
14 Correct 60 ms 3832 KB Output is correct
15 Correct 69 ms 3680 KB Output is correct
16 Correct 56 ms 4472 KB Output is correct
17 Correct 68 ms 3808 KB Output is correct
18 Correct 68 ms 3936 KB Output is correct
19 Correct 338 ms 21368 KB Output is correct
20 Correct 343 ms 18608 KB Output is correct
21 Correct 313 ms 17376 KB Output is correct
22 Correct 345 ms 21304 KB Output is correct
23 Correct 193 ms 13944 KB Output is correct
24 Correct 395 ms 18044 KB Output is correct
25 Correct 328 ms 18936 KB Output is correct