Submission #229670

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
229670	2020-05-05 19:35:58	DrSwad	Swap (BOI16_swap)	C++17	100 / 100	101 ms	7544 KiB

swap

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#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "/Users/swad/Desktop/CP/debug.h"
#endif
const int N = int(2e5) + 10;
int n;
int a[N << 1];
int at[N << 1];
int to[N << 1];
int vis[N << 1];
void setVis(int at, int val) {
  if (vis[at]) return;
  vis[at] = val;
  while (at) {
    if (vis[at << 1] == 1) to[at] = to[at << 1];
    else if (vis[at << 1 | 1] != 1) to[at] = at;
    else if (vis[at << 1] == -1) to[at] = to[at << 1 | 1];
    else to[at] = min(to[at << 1], to[at << 1 | 1]);
    at >>= 1;
  }
}
void cancelVis(int from) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

swap.cpp: In function 'int main()':
swap.cpp:50:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
swap.cpp:52:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
   ~~~~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 27 / 27
• Subtask 4: 20 / 20
• Subtask 5: 32 / 32