Submission #125753

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
125753	2019-07-06 10:08:13	AngusRitossa	Space Pirate (JOI14_space_pirate)	C++14	47 / 100	1684 ms	91512 KiB

space_pirate

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#include <bits/stdc++.h>
using namespace std;
#ifdef DEBUG
  #define D(x...) printf(x)
#else
  #define D(x...)
#endif
typedef long long ll;
int n, a[3010], ans[3010];
int canreach[3010][3010], at[3010][3010];
int from[3010][3030], fromsz[3010];
void dfs(int i, int j, int dis = 1)
{
  while (!canreach[i][j])
  {
    canreach[i][j] = dis++;
    from[i][fromsz[i]++] = j;
    j = a[j];
  }
}
ll k;
int main()
{
  scanf("%d%lld", &n, &k);
  for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
  for (int i = 1; i <= n; i++) dfs(i, i);
  for (int i = 1; i <= n; i++)
  {
    for (int j = 1; j <= n; j++)
    {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

space_pirate.cpp: In function 'int main()':
space_pirate.cpp:24:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%lld", &n, &k);
  ~~~~~^~~~~~~~~~~~~~~~~~
space_pirate.cpp:25:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
                               ~~~~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 37 / 37
• Subtask 3: 0 / 33
• Subtask 4: 0 / 20