Submission #1120397

#	Time	Username	Problem	Language	Result	Execution time	Memory
1120397		vjudge1	KOVANICE (COI15_kovanice)	C++17	10 / 100	499 ms	5192 KiB

kovanice

#include <bits/stdc++.h>

using namespace std;

#define int long long

const int sz=2e6+5;

const int INF=1e18;

const int MOD=1e9+7;

int arr[sz],res[sz];

void solve()
{
    vector<pair<int,int>> equalities;
    
    int n,m,v;
    
    cin>>n>>m>>v;
    
    for(int i=0;i<v;i++)
    {
        int a,b;
        
        char c;
        
        cin>>a>>c>>b;
        
        if(c=='=')
            equalities.push_back({a,b});
        
        else
        {
            if(c=='<')
            {
                res[a]=1;
                
                res[b]=2;
            }
            
            else
            {
                res[a]=2;
                
                res[b]=1;
            }
        }
    }
    
    for(int i=0;i<equalities.size();i++)
    {
        int a=equalities[i].first;
        
        int b=equalities[i].second;
        
        if(res[a]!=res[b])
        {
            if(res[a]!=0 && res[b]!=0)
            {
                res[a]=0;
                
                res[b]=0;
            }
            
            else if(res[a]==0)
                res[a]=res[b];
            else
                res[b]=res[a];
        }
    }
    
    for(int i=0;i<equalities.size();i++)
    {
        int a=equalities[i].first;
        
        int b=equalities[i].second;
        
        if(res[a]!=res[b])
        {
            if(res[a]!=0 && res[b]!=0)
            {
                res[a]=0;
                
                res[b]=0;
            }
            
            else if(res[a]==0)
                res[a]=res[b];
            else
                res[b]=res[a];
        }
    }
    
    for(int i=1;i<=m;i++)
    {
        if(res[i]==0)
            cout<<'?'<<endl;
        else
            cout<<'K'<<res[i]<<endl;
    }
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int t=1;
    
    //cin>>t;
    
    while(t--)
    {
        solve();
    }
}

Compilation message (stderr)

kovanice.cpp: In function 'void solve()':
kovanice.cpp:52:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |     for(int i=0;i<equalities.size();i++)
      |                 ~^~~~~~~~~~~~~~~~~~
kovanice.cpp:74:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |     for(int i=0;i<equalities.size();i++)
      |                 ~^~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 10
• Subtask 4: 0 / 40