Submission #366397

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
366397	2021-02-14 06:37:15	Kazalika	Cake 3 (JOI19_cake3)	C++14	100 / 100	2625 ms	35932 KiB

cake3

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#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
 
const int N = 2e5 + 5;
 
ll cval[N];
 
struct segment_tree {
  int size;
  vector<ll> sum, cnt;
  segment_tree() {}
  segment_tree(int sz) {
    size = sz;
    sum.resize(4 * size);
    cnt.resize(4 * size);
  }
  void upd(int t, int l, int r, int id, ll add) {
    if (l + 1 == r) {
      cnt[t] += add;
      sum[t] += add * cval[id];
      return;
    }
    int md = r + l >> 1;
    if (md > id)
      upd(t * 2 + 1, l, md, id, add);
    else
      upd(t * 2 + 2, md, r, id, add);
    sum[t] = sum[t * 2 + 1] + sum[t * 2 + 2];
 
 
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Compilation message (stderr)

cake3.cpp: In member function 'void segment_tree::upd(int, int, int, int, ll)':
cake3.cpp:25:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |     int md = r + l >> 1;
      |              ~~^~~
cake3.cpp: In member function 'll segment_tree::get(int, int, int, ll)':
cake3.cpp:41:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   41 |     int md = r + l >> 1;
      |              ~~^~~
cake3.cpp: In function 'void dc(int, int, int, int)':
cake3.cpp:92:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   92 |   int md = l + r >> 1, opt = -1;
      |            ~~^~~
cake3.cpp: In function 'int main()':
cake3.cpp:122:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  122 |   for (int i = 0; i < vf.size(); ++i) {
      |                   ~~^~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 19 / 19
• Subtask 3: 76 / 76