Submission #557027

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
557027	2022-05-04 15:27:52	rainboy	Election Campaign (JOI15_election_campaign)	C11	100 / 100	149 ms	25848 KiB

election_campaign

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#include <stdio.h>
#include <stdlib.h>
#define N 100000
#define M 100000
long long max(long long a, long long b) { return a > b ? a : b; }
void append(int **ej, int *eo, int i, int j) {
  int o = eo[i]++;
  if (o >= 2 && (o & o - 1) == 0)
    ej[i] = (int *) realloc(ej[i], o * 2 * sizeof *ej[i]);
  ej[i][o] = j;
}
int uu[M], vv[M], ww[M];
int *ej[N], eo[N], *eh[N], eo_[N], dd[N], pp[N], qq[N], ta[N], tb[N], n; long long dp[N];
int dfs1(int p, int i, int d) {
  int o, s, k_, j_;
  dd[i] = d, pp[i] = p;
  s = 1, k_ = 0, j_ = -1;
  for (o = eo[i]; o--; ) {
    int j = ej[i][o];
    if (j != p) {
      int k = dfs1(i, j, d + 1);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

election_campaign.c: In function 'append':
election_campaign.c:12:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   12 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
election_campaign.c: In function 'main':
election_campaign.c:111:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  111 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
election_campaign.c:117:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  117 |   scanf("%d%d", &i, &j), i--, j--;
      |   ^~~~~~~~~~~~~~~~~~~~~
election_campaign.c:122:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  122 |  scanf("%d", &m);
      |  ^~~~~~~~~~~~~~~
election_campaign.c:124:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  124 |   scanf("%d%d%d", &uu[h], &vv[h], &ww[h]), uu[h]--, vv[h]--;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 30 / 30
• Subtask 5: 10 / 10
• Subtask 6: 40 / 40