Submission #330673

#	Time	Username	Problem	Language	Result	Execution time	Memory
330673		caoash	Planinarenje (COCI18_planinarenje)	C++17	Compilation error	0 ms	0 KiB

planinarenje

#include <bits/stdc++.h> 
using namespace std;
 
using ll = long long;
 
using vi = vector<int>;
using vl = vector<ll>;
#define pb push_back
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
#define lb lower_bound
#define ub upper_bound
 
using pi = pair<int,int>;
#define f first
#define s second
#define mp make_pair
 
namespace output {
  void pr(int x) {
    cout << x;
  }
  void pr(long x) {
    cout << x;
  }
  void pr(ll x) {
    cout << x;
  }
  void pr(unsigned x) {
    cout << x;
  }
  void pr(unsigned long x) {
    cout << x;
  }
  void pr(unsigned long long x) {
    cout << x;
  }
  void pr(float x) {
    cout << x;
  }
  void pr(double x) {
    cout << x;
  }
  void pr(long double x) {
    cout << x;
  }
  void pr(char x) {
    cout << x;
  }
  void pr(const char * x) {
    cout << x;
  }
  void pr(const string & x) {
    cout << x;
  }
  void pr(bool x) {
    pr(x ? "true" : "false");
  }
 
  template < class T1, class T2 > void pr(const pair < T1, T2 > & x);
  template < class T > void pr(const T & x);
 
  template < class T, class...Ts > void pr(const T & t,
    const Ts & ...ts) {
    pr(t);
    pr(ts...);
  }
  template < class T1, class T2 > void pr(const pair < T1, T2 > & x) {
    pr("{", x.f, ", ", x.s, "}");
  }
  template < class T > void pr(const T & x) {
    pr("{"); // const iterator needed for vector<bool>
    bool fst = 1;
    for (const auto & a: x) pr(!fst ? ", " : "", a), fst = 0;
    pr("}");
  }
 
  void ps() {
    pr("\n");
  } // print w/ spaces
  template < class T, class...Ts > void ps(const T & t,
    const Ts & ...ts) {
    pr(t);
    if (sizeof...(ts)) pr(" ");
    ps(ts...);
  }
 
  void pc() {
    cout << "]" << endl;
  } // debug w/ commas
  template < class T, class...Ts > void pc(const T & t,
    const Ts & ...ts) {
    pr(t);
    if (sizeof...(ts)) pr(", ");
    pc(ts...);
  }
  #define dbg(x...) pr("[", #x, "] = ["), pc(x);
}
 
#ifdef mikey 
using namespace output;
#else
using namespace output;
#define dbg(x...)
#endif
 
const int MX = 5005;
const int MOD = (int) (1e9 + 7);
const ll INF = (ll) 1e18;
 
int done[MX];
int pa[MX], pb[MX];
int it = 0;
vi adj[MX];
 
bool dfs(int v, int ig) {
    done[v] = it;
    for (int to : adj[v]) {
        if (pb[to] == -1) {
            pa[v] = to;
            pb[to] = v;
            return true;
        }
    }
    for (int to : adj[v]) {
        if (pb[to] == ig) continue;
        if (done[pb[to]] != it && dfs(pb[to], ig)) {
            pa[v] = to;
            pb[to] = v;
            return true;
        }
    }
    return false;
}
 
int main(){
#ifdef mikey 
    freopen("a.in", "r", stdin);
#endif
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, m; cin >> n >> m;    
    for (int i = 0; i < m; i++) {
        int u, v; cin >> u >> v;
        u--, v--;
        adj[u].pb(v);
    }
    memset(pa, -1, sizeof(pa));
    memset(pb, -1, sizeof(pb));
    auto aug = [&] (int ig) {
        int mm = 0;
        for (int i = 0; i < n; i++) {
            if (i == ig) continue;
            if (pa[i] == -1 && dfs(i, ig)) ++mm;    
        }
        return mm;
    };
    int best = 0;
    int add = 0;
    do {
        ++it;
        add = aug(-1);
        best += add;
    } while (add > 0);
    for (int i = 0; i < n; i++) {
        int old = pa[i];
        if (pa[i] == -1) {
            cout << "Mirko\n";
            continue;
        }
        int nbest = 0;
        bool change = (pb[old] == i);
        pa[i] = -1;
        if (change) pb[old] = -1;
        do {
            ++it;
            add = aug(i);
        } while (add > 0);
        for (int j = 0; j < n; j++) {
            if (j != ig && pa[j] != -1) {
                nbest += (pb[pa[j]] == j);
            }
        }
        assert(nbest <= best);
        if (nbest == best) {
            cout << "Mirko\n";
        } else {
            cout << "Slavko\n";
        }
        pa[i] = old; 
        if (change) pb[old] = i;
    }
}

Compilation message (stderr)

planinarenje.cpp:104: warning: "dbg" redefined
  104 | #define dbg(x...)
      | 
planinarenje.cpp:97: note: this is the location of the previous definition
   97 |   #define dbg(x...) pr("[", #x, "] = ["), pc(x);
      | 
planinarenje.cpp: In function 'int main()':
planinarenje.cpp:180:22: error: 'ig' was not declared in this scope; did you mean 'i'?
  180 |             if (j != ig && pa[j] != -1) {
      |                      ^~
      |                      i