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답안 #1047141

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1047141 2024-08-07T09:20:40 Z TraianDanciu 어르신 집배원 (BOI14_postmen) C++17
100 / 100
 200 ms 44116 KB 
#include <stdio.h>
#include <vector>

#define MAXN 500000

struct Edge {
  int v, idx;
};
std::vector<Edge> g[MAXN];
int stiva[MAXN + 1], ans[MAXN + 1], rez[MAXN + 1];
char viz[MAXN];

int main() {
  int n, m, i, u, v, sp, nciclu, ptr;
  
  scanf("%d%d", &n, &m);
  for(i = 0; i < m; i++) {
    scanf("%d%d", &u, &v);
    g[--u].push_back((struct Edge){.v = --v, .idx = i});
    g[v].push_back((struct Edge){.v = u, .idx = i});
  }
  
  sp = 1;
  nciclu = 0;
  while(sp > 0) {
    u = stiva[sp - 1];
    if(g[u].empty()) {
      ans[nciclu++] = u;
      sp--;
    } else {
      v = g[u].back().v;
      i = g[u].back().idx;
      g[u].pop_back();
      if(viz[i] == 0) {
        viz[i] = 1;
        stiva[sp++] = v;
      }
    }
  }
  
  for(i = 0; i < n; i++) {
    viz[i] = 0;
  }
  ptr = 0;
  
  for(i = nciclu - 1; i >= 0; i--) {
    if(viz[ans[i]]) {
      printf("%d ", ans[i] + 1);
      while(rez[ptr - 1] != ans[i]) {
        viz[rez[--ptr]] = 0;
        printf("%d ", rez[ptr] + 1);
      }
      fputc('\n', stdout);
    } else {
      viz[rez[ptr++] = ans[i]] = 1;
    }
  }
  
  return 0;
}

Compilation message

postmen.cpp: In function 'int main()':
postmen.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |   scanf("%d%d", &n, &m);
      |   ~~~~~^~~~~~~~~~~~~~~~
postmen.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |     scanf("%d%d", &u, &v);
      |     ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
38.0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 15452 KB Output is correct
2 Correct 2 ms 15452 KB Output is correct
3 Correct 2 ms 15452 KB Output is correct
4 Correct 3 ms 15452 KB Output is correct
5 Correct 2 ms 15452 KB Output is correct
6 Correct 3 ms 15452 KB Output is correct
7 Correct 5 ms 15964 KB Output is correct
8 Correct 2 ms 15464 KB Output is correct
9 Correct 24 ms 19028 KB Output is correct
10 Correct 3 ms 15452 KB Output is correct
11 Correct 2 ms 15528 KB Output is correct
12 Correct 22 ms 19448 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 15452 KB Output is correct
2 Correct 3 ms 15452 KB Output is correct
3 Correct 3 ms 15452 KB Output is correct
4 Correct 3 ms 15524 KB Output is correct
5 Correct 2 ms 15452 KB Output is correct
6 Correct 3 ms 15452 KB Output is correct
7 Correct 5 ms 16136 KB Output is correct
8 Correct 3 ms 15452 KB Output is correct
9 Correct 21 ms 19028 KB Output is correct
10 Correct 3 ms 15452 KB Output is correct
11 Correct 3 ms 15452 KB Output is correct
12 Correct 23 ms 19336 KB Output is correct
13 Correct 29 ms 21084 KB Output is correct
14 Correct 28 ms 20448 KB Output is correct
15 Correct 25 ms 19920 KB Output is correct
16 Correct 40 ms 21144 KB Output is correct
17 Correct 28 ms 20060 KB Output is correct
18 Correct 29 ms 20304 KB Output is correct

Subtask #3
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 15448 KB Output is correct
2 Correct 2 ms 15452 KB Output is correct
3 Correct 2 ms 15272 KB Output is correct
4 Correct 2 ms 15464 KB Output is correct
5 Correct 2 ms 15452 KB Output is correct
6 Correct 3 ms 15452 KB Output is correct
7 Correct 5 ms 15964 KB Output is correct
8 Correct 2 ms 15448 KB Output is correct
9 Correct 20 ms 19048 KB Output is correct
10 Correct 3 ms 15448 KB Output is correct
11 Correct 4 ms 15452 KB Output is correct
12 Correct 20 ms 19548 KB Output is correct
13 Correct 26 ms 21084 KB Output is correct
14 Correct 27 ms 20448 KB Output is correct
15 Correct 24 ms 19916 KB Output is correct
16 Correct 25 ms 21336 KB Output is correct
17 Correct 46 ms 19792 KB Output is correct
18 Correct 26 ms 20512 KB Output is correct
19 Correct 200 ms 44116 KB Output is correct
20 Correct 152 ms 42832 KB Output is correct
21 Correct 137 ms 38584 KB Output is correct
22 Correct 162 ms 44116 KB Output is correct
23 Correct 83 ms 32596 KB Output is correct
24 Correct 149 ms 40788 KB Output is correct
25 Correct 145 ms 42580 KB Output is correct