Submission #231973

#	Time	Username	Problem	Language	Result	Execution time	Memory
231973		DodgeBallMan	Tropical Garden (IOI11_garden)	C++14	Compilation error	0 ms	0 KiB

garden

#include <bits/stdc++.h>
#include "gardenlib.h"
#include "garden.h"

using namespace std;

const int N = 3e5 + 10;
int chk[N], d[N], to[N], cyc;
vector<int> vec, g[N];

void dfs( int u ) {
    chk[u] = 1, vec.emplace_back( u );
    int v = g[u][0];
    if( !chk[v] ) d[v] = d[u] + 1, dfs( v );
    else if( chk[v] == 1 ) for( int i = (int)vec.size() - 1 ; i >= 0 ; i-- ) {
        cyc++;
        if( vec[i] == v ) break;
    }
    chk[u] = 2, vec.pop_back();
}

void count_routes( int n, int m, int p, int r[][2], int q, int G ) {
    for( int i = 0 ; i < m ; i++ ) {
        if( g[r[i][0]].size() < 2 ) g[r[i][0]].emplace_back( r[i][1] );
        if( g[r[i][1]].size() < 2 ) g[r[i][1]].emplace_back( r[i][0] );
    }
    for( int i = 0 ; i < n ; i++ ) for( int v : g[i] ) {
        if( g[v][0] == i && g[v].size() > 1 ) {
            to[i] = v + n;
            if( g[v].size() == 1 ) to[i+n] = v + n;
        }
        else {
            to[i] = v;
            if( g[v].size() == 1 ) to[i+n] = v + n;
        }
    }
    for( int i = 0 ; i < 2*n ; i++ ) g[i].clear();
    for( int i = 0 ; i < 2*n ; i++ ) g[to[i]].emplace_back( i );
    vector<int> ans( q, 0 );
    vec.clear(), memset( d, 0, sizeof d ), cyc = 0, memset( chk, 0, sizeof chk );
    dfs( p );
    for( int i = 0 ; i < q ; i++ ) {
        for( int j = 0 ; j < n ; j++ ) {
            if( d[j] > G[i] ) continue ;
            if( cyc ) ans[i] += ( ( G[i] - d[i] ) % cyc == 0 );
            else ans[i] += ( d[i] == len );
        }
    }
    
    vec.clear(), memset( d, 0, sizeof d ), cyc = 0, memset( chk, 0, sizeof chk );
    dfs( p+n );
    for( int i = 0 ; i < q ; i++ ) {
        for( int j = 0 ; j < n ; j++ ) {
            if( d[j] > G[i] ) continue ;
            if( cyc ) ans[i] += ( ( G[i] - d[i] ) % cyc == 0 );
            else ans[i] += ( d[i] == len );
        }
        answer( ans[i] );   
    }
}

Compilation message (stderr)

garden.cpp: In function 'void count_routes(int, int, int, int (*)[2], int, int)':
garden.cpp:44:27: error: invalid types 'int[int]' for array subscript
             if( d[j] > G[i] ) continue ;
                           ^
garden.cpp:45:40: error: invalid types 'int[int]' for array subscript
             if( cyc ) ans[i] += ( ( G[i] - d[i] ) % cyc == 0 );
                                        ^
garden.cpp:46:38: error: 'len' was not declared in this scope
             else ans[i] += ( d[i] == len );
                                      ^~~
garden.cpp:54:27: error: invalid types 'int[int]' for array subscript
             if( d[j] > G[i] ) continue ;
                           ^
garden.cpp:55:40: error: invalid types 'int[int]' for array subscript
             if( cyc ) ans[i] += ( ( G[i] - d[i] ) % cyc == 0 );
                                        ^
garden.cpp:56:38: error: 'len' was not declared in this scope
             else ans[i] += ( d[i] == len );
                                      ^~~