Submission #49519

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
49519	2018-05-30 07:19:18	ho94949	Parachute rings (IOI12_rings)	C++17	100 / 100	2620 ms	120520 KiB

rings

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#include<vector>
#include<algorithm>
using namespace std;
const int MAXN = 1010101;
struct UF
{
    int ufd[MAXN], N;
    UF(){}
    UF(int n): N(n)
    {
        for(int i=0; i<n; ++i) ufd[i] = i;
    }
    int Find(int a)
    {
        if(a==ufd[a]) return a;
        return ufd[a] = Find(ufd[a]);
    }
    bool Union(int a, int b)
    {
        a = Find(a); b = Find(b);
        if(a==b) return false;
        ufd[a] = b; return true;
    }
};
struct DAT
{
    UF uf; int deg[MAXN]; int N; int numcyc; int cyclen; bool ovdeg;
    DAT(){}
 
 
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Compilation message (stderr)

rings.cpp: In constructor 'DAT::DAT(int)':
rings.cpp:29:31: warning: 'DAT::N' will be initialized after [-Wreorder]
     UF uf; int deg[MAXN]; int N; int numcyc; int cyclen; bool ovdeg;
                               ^
rings.cpp:29:8: warning:   'UF DAT::uf' [-Wreorder]
     UF uf; int deg[MAXN]; int N; int numcyc; int cyclen; bool ovdeg;
        ^~
rings.cpp:31:5: warning:   when initialized here [-Wreorder]
     DAT(int n): N(n), uf(n), numcyc(0), cyclen(0), ovdeg(0)
     ^~~
rings.cpp: In function 'void Link(int, int)':
rings.cpp:98:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int i=0; i<datas.size(); ++i)
                          ~^~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 17 / 17
• Subtask 3: 18 / 18
• Subtask 4: 14 / 14
• Subtask 5: 31 / 31