Submission #436613

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
436613	2021-06-24 16:54:18	dqhungdl	Fountain Parks (IOI21_parks)	C++17	30 / 100	829 ms	49800 KiB

parks

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#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> ii;
const int MAX=2e5+5;
int n,P[MAX];
vector<int> x,y;
map<ii,int> M;
bool isVertical(ii u) {
  return x[u.first]==x[u.second];
}
bool cmp(ii u,ii v) {
  if(x[u.first]==x[v.first]) {
    if(isVertical(u)==isVertical(v))
      return y[u.first]<y[v.first];
    return isVertical(u)>isVertical(v);
  }
  return x[u.first]<x[v.first];
}
vector<ii> constructBenches(vector<ii> &paths) {
  map<ii,bool> mark,under;
  vector<ii> benchesPos;
  for(int i=0;i<paths.size();i++) {
    ii path=paths[i];
    if(x[path.first]==x[path.second]) {
 
 
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Compilation message (stderr)

parks.cpp: In function 'std::vector<std::pair<int, int> > constructBenches(std::vector<std::pair<int, int> >&)':
parks.cpp:28:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |  for(int i=0;i<paths.size();i++) {
      |              ~^~~~~~~~~~~~~
parks.cpp:43:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |   for(int i=0;i<paths.size();i++) {
      |               ~^~~~~~~~~~~~~
parks.cpp:53:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |   for(int i=0;i<paths.size();i++) {
      |               ~^~~~~~~~~~~~~
parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:120:17: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  120 |  if(paths.size()!=n-1)
      |     ~~~~~~~~~~~~^~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30