Submission #103989

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
103989	2019-04-03 14:12:11	igba	Fortune Telling 2 (JOI14_fortune_telling2)	C++17	35 / 100	3103 ms	198092 KiB

fortune_telling2

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2 * 100100, MAXK = 2 * 100100, MAXA = 1e9 + 1e4;
int n, k, a[MAXN], b[MAXN], t[MAXK];
long long ans = 0;
struct no
{
  int cnt;
  no *l, *r;
  no(int cnt = 0) : cnt(cnt), l(nullptr), r(nullptr)
  {}
};
inline int getcnt(no *n) { return (n ? n->cnt : 0); }
no* upd(no* n, int pos, int val = 1, int beg = 1, int end = MAXA)
{
  if(beg == end)
    return new no(getcnt(n) + val);
  no* ans = (n ? new no(*n) : new no());
  int mid = (beg + end) >> 1;
  if(pos <= mid)
    ans->l = upd(ans->l, pos, val, beg, mid);
  else
    ans->r = upd(ans->r, pos, val, mid + 1, end);
  ans->cnt = getcnt(ans->l) + getcnt(ans->r);
  return ans;
}
 
 
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Compilation message (stderr)

fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:66:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &k);
  ~~~~~^~~~~~~~~~~~~~~~~
fortune_telling2.cpp:68:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &a[i], &b[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:70:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &t[i]), pseg[i] = upd(pseg[i - 1], t[i]);
   ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 31 / 31
• Subtask 3: 0 / 65