Submission #685168

#	Time	Username	Problem	Language	Result	Execution time	Memory
685168		edogawa_something	Checker (COCI19_checker)	C++17	0 / 110	646 ms	54088 KiB

checker

#include<bits/stdc++.h>
#include<chrono>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace std;  
using namespace __gnu_pbds;
typedef long long ll;
typedef long double ld;
typedef string st;
typedef bool bl;
typedef vector<ll> vii;
typedef pair<ll,ll> pii;
typedef vector<pii> vpi;
#define pu push
#define ordered_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>
#define fast ios_base::sync_with_stdio(0);cin.tie();
#define test ll qqqqq;cin>>qqqqq;while(qqqqq--)
#define F first
#define S second
#define forn(i,n) for(ll i=0;i<n;i++)
#define forx(i,j,n) for(ll i=j;i<n;i++)
#define pb push_back
#define pob pop_back
#define all(v) v.begin(),v.end()
#define lb lower_bound
#define ub upper_bound
#define pof pop_front
#define pow powww
#define prtll(x) printf("%lld",x)
#define prtld(x) printf("%Lf",x)
#define prtst(x) printf("%s",x)
#define prtch(x) printf("%c",x)
#define measure chrono::high_resolution_clock::now()
const ll dx[]{1,0,-1,0};
const ll dy[]{0,-1,0,1};
const ll inf=2e18;
const ll mod=1e9+7;
const ll LM=2e7+1;
const ll M=3e6+1;
const ll MM=1002;
const ll MMM=501;
const ld pi=acos(-1);
//const ll mod=998244353;
ll pow(ll r,ll to,ll m=mod){
  ll res=1;
  while(to){
    if((to&1)){
      res*=r,res%=mod;
    }
    r*=r,r%=mod;
    to=(to>>1);
  }
  return res;
}
ll n;
st s;
map<pii,ll>mp;
int main(){
  fast
  cin>>n;
  cin>>n;
  cin>>s;
  forn(i,s.size()-1){
    mp[{i+1,i+2}]=mp[{i+2,i+1}]=s[i]-'0';
  }
  mp[{n,1}]=mp[{1,n}]=s[s.size()-1]-'0';
  forn(i,n-3){
    ll x,y,z;
    cin>>x>>y>>z;
    mp[{x,y}]=mp[{y,x}]=z;
  }
  ll chk=2;
  vii v;
  forx(i,1,n+1)
  v.pb(i);
  while(v.size()>=3){
    if(v.size()>3){
    ll ind=0;
    forn(i,v.size()){
      if(mp[{v[i],v[(i+2)%v.size()]}]>0){
      ind=i+1;
      break;
      }
    }
    if(ind==0){
      chk=0;
      break;
    }
    ind--;
    ll iind=ind;
    forn(i,(v.size()+1)/2){
      if(mp[{v[ind],v[(ind+2)%v.size()]}]==0)
      chk=0;
      if(mp[{v[ind],v[(ind+2)%v.size()]}]!=mp[{v[ind],v[(ind+1)%v.size()]}]){
        if(mp[{v[ind],v[(ind+1)%v.size()]}]!=mp[{v[(ind+1)%v.size()],v[(ind+2)%v.size()]}]){
          if(mp[{v[ind],v[(ind+2)%v.size()]}]!=mp[{v[(ind+1)%v.size()],v[(ind+2)%v.size()]}])
          continue;
          chk=1;
        }
        else
        chk=1;
      }
      else
      chk=1;
      ind+=2;
      ind%=v.size();
    }
    vii vv;
    forn(i,(v.size()+1)/2){
      vv.pb(v[iind]);
      iind+=2;
      iind%=v.size();
    }
    v.clear();
    for(auto it:vv)
    v.pb(it);
    }
    else{
      if(min(mp[{v[1],v[2]}],min(mp[{v[0],v[1]}],mp[{v[0],v[2]}]))==0)
      chk=0;
      else{
        if(mp[{v[1],v[2]}]==mp[{v[0],v[1]}])
        chk=1;
        if(mp[{v[1],v[2]}]==mp[{v[0],v[2]}])
        chk=1;
        if(mp[{v[0],v[1]}]==mp[{v[0],v[2]}])
        chk=1;
      }
      break;
    }
  }
  if(chk==0)
  cout<<"neispravna triangulacija";
  else if(chk==1)
  cout<<"neispravno bojenje";
  else
  cout<<"tocno";
  return 0;
}
/*
*/

Compilation message (stderr)

checker.cpp: In function 'int main()':
checker.cpp:20:31: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 | #define forn(i,n) for(ll i=0;i<n;i++)
......
   63 |   forn(i,s.size()-1){
      |        ~~~~~~~~~~~~            
checker.cpp:63:3: note: in expansion of macro 'forn'
   63 |   forn(i,s.size()-1){
      |   ^~~~
checker.cpp:20:31: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 | #define forn(i,n) for(ll i=0;i<n;i++)
......
   79 |     forn(i,v.size()){
      |          ~~~~~~~~~~            
checker.cpp:79:5: note: in expansion of macro 'forn'
   79 |     forn(i,v.size()){
      |     ^~~~
checker.cpp:20:31: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 | #define forn(i,n) for(ll i=0;i<n;i++)
......
   91 |     forn(i,(v.size()+1)/2){
      |          ~~~~~~~~~~~~~~~~      
checker.cpp:91:5: note: in expansion of macro 'forn'
   91 |     forn(i,(v.size()+1)/2){
      |     ^~~~
checker.cpp:20:31: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 | #define forn(i,n) for(ll i=0;i<n;i++)
......
  109 |     forn(i,(v.size()+1)/2){
      |          ~~~~~~~~~~~~~~~~      
checker.cpp:109:5: note: in expansion of macro 'forn'
  109 |     forn(i,(v.size()+1)/2){
      |     ^~~~

• Subtask 1: 0 / 12
• Subtask 2: 0 / 17
• Subtask 3: 0 / 23
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35