Submission #1041519

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1041519	2024-08-02 05:05:49	pcc	Roller Coaster Railroad (IOI16_railroad)	C++17	100 / 100	117 ms	23488 KiB

railroad

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#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define fs first
#define sc second
#define pll pair<ll,ll>
#define _all(T) T.begin(),T.end()
#define tiii tuple<int,int,int>
const ll inf = 1e9+10;
const int mxn = 2e5+10;
struct DSU{
  int dsu[mxn*3],sz[mxn*3];
  void init(int n){
    iota(dsu,dsu+n,0);
    fill(sz,sz+n,1);
  }
  int root(int k){return k== dsu[k]?k:dsu[k] = root(dsu[k]);}
  void onion(int a,int b){
    a = root(a),b = root(b);
    if(a == b)return;
    if(sz[a]<sz[b])swap(a,b);
    sz[a] += sz[b];
    dsu[b] = a;
    return;
  }
 
 
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Compilation message (stderr)

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:59:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |  for(int i = 0;i<all.size();i++){
      |                ~^~~~~~~~~~~
railroad.cpp:60:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |   if(i != all.size()-1||in[i] == out[i]);
      |      ~~^~~~~~~~~~~~~~~
railroad.cpp:76:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |  for(int i = 1;i<all.size();i++){
      |                ~^~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 30 / 30
• Subtask 4: 36 / 36