Submission #292491

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
292491	2020-09-07 06:12:25	Berted	Examination (JOI19_examination)	C++14	100 / 100	719 ms	27120 KiB

examination

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#include <iostream>
#include <algorithm>
#include <vector>
#define pii pair<int, int>
#define fst first
#define snd second
#define pip pair<int, pii>
#define ppp pair<pii, pii>
using namespace std;
const int INF = 1e9;
struct DS
{
  vector<int> C, A;
  DS() {C.push_back(-1);}
  void addPoint(int x) {C.push_back(x);}
  void prepDS()
  {
    sort(C.begin(), C.end());
    C.resize(unique(C.begin(), C.end()) - C.begin());
    A.resize(C.size());
  }
  void update(int x, int v)
  {
    auto it = prev(upper_bound(C.begin(), C.end(), x)) - C.begin();
    for (; it < A.size(); it += it & (-it)) {A[it] += v;}
  }
  int query(int x)
  {
 
 
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Compilation message (stderr)

examination.cpp: In member function 'void DS::update(int, int)':
examination.cpp:27:13: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |   for (; it < A.size(); it += it & (-it)) {A[it] += v;}
      |          ~~~^~~~~~~~~~
examination.cpp: In function 'void DS2::addPoint2(int, int)':
examination.cpp:51:13: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |   for (; it < C.size(); it += it & (-it)) {A[it].addPoint(y);}
      |          ~~~^~~~~~~~~~
examination.cpp: In function 'void DS2::prepDS2()':
examination.cpp:55:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |   for (int i = 0; i < C.size(); i++) {A[i].prepDS();}
      |                   ~~^~~~~~~~~~
examination.cpp: In function 'void DS2::update(int, int, int)':
examination.cpp:60:13: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |   for (; it < C.size(); it += it & (-it)) {A[it].update(y, v);}
      |          ~~~^~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 20 / 20
• Subtask 3: 21 / 21
• Subtask 4: 57 / 57