Submission #340156

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
340156	2020-12-27 05:29:46	GioChkhaidze	Segments (IZhO18_segments)	C++14	100 / 100	2280 ms	7624 KiB

segments

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#include <bits/stdc++.h>
 
#define pb push_back
 
using namespace std;
 
const int N = 2e5 + 5;
const int Sq = 1300;
 
int A[N], B[N], C[N];
int n, u, t, bl, lastans;
int sq = 1500;
 
struct st { int x; };
 
bool operator<(const st& a,const st& b) { 
  return C[a.x] < C[b.x]; 
}
 
struct {
  vector < st > u, c, ol;
  vector < int > L[N / Sq], R[N / Sq]; 
 
  void insert(st id) {
    u.pb(id);
    if (u.size() == sq) {
      vector < st > c;
      c.reserve(u.size() + ol.size());
      sort(u.begin(), u.end());
      merge(u.begin(), u.end(), ol.begin(), ol.end(), back_inserter(c));
 
 
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Compilation message (stderr)

segments.cpp: In member function 'void<unnamed struct>::insert(st)':
segments.cpp:26:16: warning: comparison of integer expressions of different signedness: 'std::vector<st>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   26 |   if (u.size() == sq) {
      |       ~~~~~~~~~^~~~~
segments.cpp:33:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<st>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |    for (int bl = 0; bl*sq < ol.size(); ++bl) {
      |                     ~~~~~~^~~~~~~~~~~
segments.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<st>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |    for (int i = 0; i < ol.size(); ++i) {
      |                    ~~^~~~~~~~~~~
segments.cpp:43:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<st>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |    for (int bl = 0; bl*sq < ol.size(); ++bl) {
      |                     ~~~~~~^~~~~~~~~~~
segments.cpp: In member function 'int<unnamed struct>::solve(int, int, int)':
segments.cpp:53:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<st>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |   for (i = 0; i < u.size(); ++i)
      |               ~~^~~~~~~~~~
segments.cpp:57:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<st>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |   for (s = 0; s < ol.size(); s += sq) {
      |               ~~^~~~~~~~~~~
segments.cpp:52:22: warning: unused variable 'S' [-Wunused-variable]
   52 |   int ans = 0, s, f, S, F, i;
      |                      ^
segments.cpp:52:25: warning: unused variable 'F' [-Wunused-variable]
   52 |   int ans = 0, s, f, S, F, i;
      |                         ^
segments.cpp: At global scope:
segments.cpp:86:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   86 | main () {
      |       ^

• Subtask 1: 7 / 7
• Subtask 2: 15 / 15
• Subtask 3: 16 / 16
• Subtask 4: 17 / 17
• Subtask 5: 20 / 20
• Subtask 6: 25 / 25