Submission #831438

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
831438	2023-08-20 08:59:13	rainboy	LOSTIKS (INOI20_lostiks)	C11	100 / 100	1604 ms	246508 KiB

Main

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 1000000
#define M 20
#define INF 0x3f3f3f3f
int min(int a, int b) { return a < b ? a : b; }
int n, m;
int *ej[N], *eg[N], eo[N];
int uu[M], vv[M];
void append(int i, int j, int g) {
  int o = eo[i]++;
  if (o >= 2 && (o & o - 1) == 0) {
    ej[i] = (int *) realloc(ej[i], o * 2 * sizeof *ej[i]);
    eg[i] = (int *) realloc(eg[i], o * 2 * sizeof *eg[i]);
  }
  ej[i][o] = j, eg[i][o] = g;
}
int dd[N], pp[N], qq[N], bb[N];
int dfs1(int p, int i, int d, int b) {
  int o, s, k_, j_;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

Main.c: In function 'append':
Main.c:19:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   19 |  if (o >= 2 && (o & o - 1) == 0) {
      |                     ~~^~~
Main.c: In function 'main':
Main.c:81:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |  scanf("%d%d%d", &n, &s, &t), s--, t--;
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:88:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   88 |   scanf("%d%d%d", &i, &j, &u), i--, j--, u--;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 23 / 23
• Subtask 2: 36 / 36
• Subtask 3: 41 / 41