Submission #960655

#	Time	Username	Problem	Language	Result	Execution time	Memory
960655		IUA_Hasin	Game (IOI14_game)	C++17	100 / 100	315 ms	44540 KiB

game

#include <bits/stdc++.h>
 
#define endl                                "\n"
#define yeap                                cout<<"YES"<<endl
#define nope                                cout<<"NO"<<endl
#define ll                                  long long
 
using namespace std; 
 

#include "game.h"

const ll N = 1500;
vector<ll> vec[N];
ll vis[N], deg[N];
ll cnt, a, vertex_count;

void initialize(int n) {
    cnt = 0;
    vertex_count = 0;
    a = n;
}

int hasEdge(int u, int v) {
    vec[u].push_back(v);
    vec[v].push_back(u);
    if(cnt==0){
        vis[u] = 1;
        vis[v] = 1;
        vertex_count = 2;
        cnt++;
        return 1;
    } else {
        if(vis[u]==0 && vis[v]==0){
            return 0;
        } else if(vis[u]==1 && vis[v]==1){
            return 1;
        } else {
            if(vis[u]==0 && vis[v]==1){
                if(deg[u]==vertex_count-1){
                    vis[u] = 1;
                    vertex_count++;
                    deg[u]++;
                    for(int i=0; i<vec[u].size(); i++){
                        ll a = vec[u][i];
                        deg[a]++;
                    }
                    return 1;
                } else {
                    deg[u]++;
                    return 0;
                }
            } else if(vis[u]==1 && vis[v]==0){
                if(deg[v]==vertex_count-1){
                    vis[v] = 1;
                    vertex_count++;
                    deg[v]++;
                    for(int i=0; i<vec[v].size(); i++){
                        ll a = vec[v][i];
                        deg[a]++;
                    }
                    return 1;
                } else {
                    deg[v]++;
                    return 0;
                }
            } 
        }
    }
}   

Compilation message (stderr)

game.cpp: In function 'int hasEdge(int, int)':
game.cpp:44:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |                     for(int i=0; i<vec[u].size(); i++){
      |                                  ~^~~~~~~~~~~~~~
game.cpp:58:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |                     for(int i=0; i<vec[v].size(); i++){
      |                                  ~^~~~~~~~~~~~~~
game.cpp:70:1: warning: control reaches end of non-void function [-Wreturn-type]
   70 | }
      | ^

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 58 / 58