Submission #1120471

#	Time	Username	Problem	Language	Result	Execution time	Memory
1120471		vjudge1	KOVANICE (COI15_kovanice)	C++17	50 / 100	651 ms	124132 KiB

kovanice

#include <bits/stdc++.h>
using namespace std;
 
#define SPEED                     \
    ios_base::sync_with_stdio(0); \
    cin.tie(NULL);                \
    cout.tie(NULL);
 
#define pb push_back
#define endl "\n"
#define ALL(x) x.begin(), x.end()
#define intt long long
 
const intt mxN = 2e5 + 5;

vector<vector<intt>>graph;
vector<bool>visited(mxN, 0);
vector<string>anss(mxN);

void dfs(intt node, string s) {
    visited[node] = 1;
    anss[node] = s;
    for(auto u : graph[node]) {
        if(!visited[u]){
            dfs(u, s);
        }
    }
}

void solve() {
    int n, m, v;
    cin >> n >> m >> v;
    
    map<char,intt> mp[m + 1];
    graph.resize(m + 1);
    anss.resize(m + 1);
    for(int i = 1; i <= m; i++) {
        anss[i] = "?";
    }

    map<intt,intt>k1, k2;
    vector<string>beraber;
    while(v--) {
        int a, c; char b;
        cin >> a >> b >> c;

        if(b == '=') {
            graph[a].pb(c);
            graph[c].pb(a);
        } else if(b == '<') {
            anss[a] = "K1";
            anss[c] = "K2";
            k1[a]++;
            k2[c]++;
        } else {
            anss[c] = "K1";
            anss[a] = "K2";
            k2[a]++;
            k1[c]++;
        }
        
    }
    for(int i = 1; i <= m; i++) {
        if(k1[i] > 0) {
            dfs(i, "K1");
        } else if(k2[i] > 0) {
            dfs(i, "K2");
        }
    }
    for(int i = 1; i <= m; i++) {
        cout << anss[i] << endl;
    }
}

int main(){
    SPEED;
    int tst = 1, i = 1;
    // cin >> tst;
    while(tst--) {
        solve();
    }
    return 0;
}

Compilation message (stderr)

kovanice.cpp: In function 'int main()':
kovanice.cpp:77:18: warning: unused variable 'i' [-Wunused-variable]
   77 |     int tst = 1, i = 1;
      |                  ^

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