Submission #569922

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
569922	2022-05-28 08:34:41	jmyszka2007	XORanges (eJOI19_xoranges)	C++17	100 / 100	162 ms	7952 KiB

xoranges

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#include <bits/stdc++.h>
using namespace std;
constexpr int base = (1 << 18);
int d1[2 * base];
int d2[2 * base];
void upd1(int v, int x) {
  v += base;
  d1[v] = x;
  v >>= 1;
  while(v > 0) {
    d1[v] = d1[2 * v] ^ d1[2 * v + 1];
    v >>= 1;
  }
}
int que1(int l, int r) {
  l += base;
  r += base;
  int ans = 0;
  while(l <= r) {
    if(l & 1) {
      ans ^= d1[l];
    }
    if(!(r & 1)) {
      ans ^= d1[r];
    }
    l++;
    l >>= 1;
    r--;
    r >>= 1;
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

xoranges.cpp: In function 'int main()':
xoranges.cpp:62:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |  scanf("%d%d", &n, &t);
      |  ~~~~~^~~~~~~~~~~~~~~~
xoranges.cpp:65:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |   scanf("%d", &x);
      |   ~~~~~^~~~~~~~~~
xoranges.cpp:75:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |   scanf("%d", &tp);
      |   ~~~~~^~~~~~~~~~~
xoranges.cpp:78:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   78 |    scanf("%d%d", &v, &x);
      |    ~~~~~^~~~~~~~~~~~~~~~
xoranges.cpp:88:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   88 |    scanf("%d%d", &l, &r);
      |    ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 18 / 18
• Subtask 3: 25 / 25
• Subtask 4: 20 / 20
• Subtask 5: 25 / 25