Submission #34267

#	Time	Username	Problem	Language	Result	Execution time	Memory
34267		imaxblue	Cop and Robber (BOI14_coprobber)	C++14	60 / 100	965 ms	262144 KiB

coprobber

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define pb push_back
#define x first
#define y second
#define pii pair<int, int>
#define p3i pair<pii, int>
#define pll pair<ll, ll>
#define p3l pair<pll, ll>
#define lseg L, (L+R)/2, N*2+1
#define rseg (L+R)/2+1, R, N*2+2
#define ub upper_bound
#define lb lower_bound
#define pq priority_queue
#define MN 1000000007
#define fox(k, x) for (int k=0; k<x; ++k)
#define fox1(k, x) for (int k=1; k<=x; ++k)
#define foxr(k, x) for (int k=x-1; k>=0; --k)
#define fox1r(k, x) for (int k=x; k>0; --k)
#define ms multiset
#define flood(x) memset(x, 0x3f3f3f3f, sizeof x)
#define drain(x) memset(x, 0, sizeof x)
#define rng() (rand() >> 3)*rand()

int n, m, a, b, p, dp[505][505][2], nxt[505][505], in[505][505];
bool u[505][505][2], t;
vector<int> v[505];
queue<pair<pii, pii> > q;
#define top front
int start (int N, bool A[][500]){
	fox(l, N){
      fox(l2, N){
        if (A[l][l2]) {
            v[l].pb(l2);
            fox(l3, N){
                in[l3][l2]++;
            }
        }
      }
	}
	fox(l, N){
        q.push(mp(mp(l, l), mp(0, -1)));
        q.push(mp(mp(l, l), mp(1, -1)));
	}
	while(!q.empty()){
        a=q.top().x.x; b=q.top().x.y; t=q.top().y.x; p=q.top().y.y; q.pop();
        if (u[a][b][t]) continue;
        if (t) nxt[a][b]=p;
        u[a][b][t]=1;
        //cout << a << ' ' << b << ' ' << t<< endl;
        if (t){
            fox(l, v[b].size()){
                in[a][v[b][l]]--;
                if (in[a][v[b][l]]==0){
                    q.push(mp(mp(a, v[b][l]), mp(!t, b)));
                }
            }
        } else {
            fox(l, v[a].size()){
                q.push(mp(mp(v[a][l], b), mp(!t, a)));
            }
            q.push(mp(mp(a, b), mp(!t, a)));
        }
	}
	fox(l, N){
		bool f=1;
		fox(l2, N){
			if (u[l][l2][1]==0){
				f=0;
				break;
			}
		}
		if (f){
			return l;
		}
	}
	return -1;
}
int nextMove(int R){
	m=R;
	if (n==m) return n;
	n=nxt[n][m];
	return n;
}
/*int main(){
	int n;
	bool a[500][500];
	cin >> n;
	fox(l, n) fox(l2, n) cin >> a[l][l2];
	//fox(l, n) fox(l2, n) cout << dp[l][l2][0];
	cout << start(n, a);
}*/

Compilation message (stderr)

coprobber.cpp: In function 'int start(int, bool (*)[500])':
coprobber.cpp:18:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
coprobber.cpp:54:17:
             fox(l, v[b].size()){
                 ~~~~~~~~~~~~~~    
coprobber.cpp:54:13: note: in expansion of macro 'fox'
             fox(l, v[b].size()){
             ^~~
coprobber.cpp:18:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
coprobber.cpp:61:17:
             fox(l, v[a].size()){
                 ~~~~~~~~~~~~~~    
coprobber.cpp:61:13: note: in expansion of macro 'fox'
             fox(l, v[a].size()){
             ^~~

• Subtask 1: 16 / 16
• Subtask 2: 14 / 14
• Subtask 3: 30 / 30
• Subtask 4: 0 / 40