제출 #311108

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
311108		Vladth11	Political Development (BOI17_politicaldevelopment)	C++14	컴파일 에러	0 ms	0 KiB

politicaldevelopment

#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debug_with_space(x) cerr << #x << " " << x << " "

using namespace std;
typedef long long ll;
typedef pair <ll, ll> pii;
typedef pair <ll, pii> muchie;

const ll NMAX = 100005;
const ll INF = (1LL << 60);
const ll MOD = 1000000007;
const ll BLOCK = 101;

vector <int> v[NMAX];
int st[NMAX];

int main() {
    // ifstream cin("catsfood.in");
    // ofstream cout("catsfood.out");
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, k, i, d;
    cin >> n >> k;
    for(i = 1; i <= n; i++) {
        int d;
        cin >> d;
        v[i].push_back(i);
        while(d--) {
            int x;
            cin >> x;
            v[i].push_back(x + 1);
        }
        sort(v[i].begin(), v[i].end());
    }
    int maxim = 0;
    for(i = 1; i <= n; i++) {
        int nrbits = v[i].size();
       // debug(i);
        for(int mask = 1; mask < (1 << nrbits); mask++) {
            st.clear();
            int cnt = 0;
            for(int j = nrbits - 1; j >= 0; j--) {
                if(mask & (1 << j)) {
                    for(auto x : v[v[i][j]]) {
                        if(st[x] != 0)
                            cnt++;
                    }
                    st[v[i][j]] = 1;
                }
            }
          for(int j = 0; j < nrbits;j++)
            st[v[i][j]] = 0;
            int bb = __builtin_popcount(mask);
         //   debug_with_space(mask);
           // debug(cnt);
            if(cnt == bb * (bb - 1) / 2)
                maxim = max(maxim, bb);
        }
    }
    cout << maxim;
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:42:16: error: request for member 'clear' in 'st', which is of non-class type 'int [100005]'
   42 |             st.clear();
      |                ^~~~~
politicaldevelopment.cpp:53:11: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   53 |           for(int j = 0; j < nrbits;j++)
      |           ^~~
politicaldevelopment.cpp:55:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   55 |             int bb = __builtin_popcount(mask);
      |             ^~~
politicaldevelopment.cpp:24:18: warning: unused variable 'd' [-Wunused-variable]
   24 |     int n, k, i, d;
      |                  ^