Submission #433883

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
433883	2021-06-20 11:49:21	kostia244	Sky Walking (IOI19_walk)	C++17	0 / 100	581 ms	114752 KiB

walk

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#include "walk.h"
#include<bits/stdc++.h>
#define all(x) begin(x), end(x)
using namespace std;
using ll = long long;
ll min_distance(vector<int> x, vector<int> h, vector<int> l, vector<int> r, vector<int> y, int U, int V) {
  int n = x.size(), m = l.size();
  vector<vector<array<int, 2>>> g;
  vector<vector<int>> on(n+1);
  vector<int> col, lst(m, -1), start(n);
  for(int i = 0; i < m; i++) {
    on[l[i]].push_back(i);
    on[r[i]+1].push_back(-1-i);
  }
  set<array<int, 2>> hv;
  for(int i = 0; i < n; i++) {
    for(auto id : on[i]) {
      if(id < 0) {
        id = -id-1;
        hv.erase({y[id], id});
      } else
        hv.insert({y[id], id});
    }
    start[i] = g.size();
    g.push_back({});//(i, 0)
    col.push_back(i);
    int loh = 0;
    auto it = hv.begin();
    while(it != hv.end() && it->at(0) <= h[i]) {
 
 
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Compilation message (stderr)

walk.cpp: In function 'll min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:32:30: warning: narrowing conversion of 'g.std::vector<std::vector<std::array<int, 2> > >::size()' from 'std::vector<std::vector<std::array<int, 2> > >::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing]
   32 |    g.back().push_back({g.size(), y[id]-loh});
      |                        ~~~~~~^~
walk.cpp:33:26: warning: narrowing conversion of '(g.std::vector<std::vector<std::array<int, 2> > >::size() - 1)' from 'std::vector<std::vector<std::array<int, 2> > >::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing]
   33 |    g.push_back({{g.size()-1, y[id]-loh}});
      |                  ~~~~~~~~^~
walk.cpp:38:35: warning: narrowing conversion of '(g.std::vector<std::vector<std::array<int, 2> > >::size() - 1)' from 'std::vector<std::vector<std::array<int, 2> > >::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing]
   38 |     g[lst[id]].push_back({g.size()-1, x[i]-x[col[lst[id]]]});
      |                           ~~~~~~~~^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 14
• Subtask 3: 0 / 15
• Subtask 4: 0 / 18
• Subtask 5: 0 / 43