Submission #759185

#	Time	Username	Problem	Language	Result	Execution time	Memory
759185		Dan4Life	Game (IOI14_game)	C++17	0 / 100	1 ms	344 KiB

game

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
int n, p[1501],sz[1501];
vector<int> v[1501];
bool chk[1501][1501];
int findSet(int i){return i==p[i]?i:p[i]=findSet(p[i]);}
int unionSet(int i, int j){
    int x = findSet(i), y = findSet(j);
    if(x==y) return 1;
    if(sz[x]<sz[y]) swap(x,y);
    for(auto u : v[y]) v[x].pb(u); v[y].clear();
    p[y] = x; sz[x]+=sz[y];  return 1;
}

void initialize(int N){
    n = N; for(int i =0; i < N; i++) p[i]=i,sz[i]=1;
}

int hasEdge(int u, int vv){
    int cnt = 0;
    int x = findSet(u), y = findSet(vv);
    if(x==y){ chk[u][vv]=chk[vv][u]=1; return 0; }
    for(auto i : v[x]) for(auto j : v[y]) cnt+=v[i][j];
    chk[u][vv]=chk[vv][u]=1;
    return cnt==sz[x]*sz[y]-1?unionSet(u,vv):0;
}

Compilation message (stderr)

game.cpp: In function 'int unionSet(int, int)':
game.cpp:12:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   12 |     for(auto u : v[y]) v[x].pb(u); v[y].clear();
      |     ^~~
game.cpp:12:36: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   12 |     for(auto u : v[y]) v[x].pb(u); v[y].clear();
      |                                    ^

• Subtask 1: 0 / 15
• Subtask 2: 0 / 27
• Subtask 3: 0 / 58