Submission #122624

#	Time	Username	Problem	Language	Result	Execution time	Memory
122624		duality	Meetings (JOI19_meetings)	C++14	100 / 100	1281 ms	940 KiB

meetings

#define DEBUG 0

#include <bits/stdc++.h>
using namespace std;

#if DEBUG
// basic debugging macros
int __i__,__j__;
#define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl
#define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl
#define printVar(n) cout<<#n<<": "<<n<<endl
#define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl
#define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;}
#define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;}

// advanced debugging class
// debug 1,2,'A',"test";
class _Debug {
    public:
        template<typename T>
        _Debug& operator,(T val) {
            cout << val << endl;
            return *this;
        }
};
#define debug _Debug(),
#else
#define printLine(l)
#define printLine2(l,c)
#define printVar(n)
#define printArr(a,l)
#define print2dArr(a,r,c)
#define print2dArr2(a,r,c,l)
#define debug
#endif

// define
#define MAX_VAL 999999999
#define MAX_VAL_2 999999999999999999LL
#define EPS 1e-6
#define mp make_pair
#define pb push_back

// typedef
typedef unsigned int UI;
typedef long long int LLI;
typedef unsigned long long int ULLI;
typedef unsigned short int US;
typedef pair<int,int> pii;
typedef pair<LLI,LLI> plli;
typedef vector<int> vi;
typedef vector<LLI> vlli;
typedef vector<pii> vpii;
typedef vector<plli> vplli;

// ---------- END OF TEMPLATE ----------
#include "meetings.h"

int solve(vi v) {
    if (v.size() <= 1) return 0;
    random_shuffle(v.begin(),v.end());
    int i,a = v[0],b = v[1];
    vi va,vb;
    va.pb(a),vb.pb(b);
    for (i = 2; i < v.size(); i++) {
        int x = ((v[i] != a) && (v[i] != b)) ? Query(a,b,v[i]):v[i];
        if (x == a) va.pb(v[i]);
        else if (x == b) vb.pb(v[i]);
        else if (va.size() < vb.size()) va.pb(v[i]),a = x;
        else vb.pb(v[i]),b = x;
    }
    Bridge(min(a,b),max(a,b));
    solve(va),solve(vb);
    return 0;
}
void Solve(int N) {
    int i;
    vi v;
    for (i = 0; i < N; i++) v.pb(i);
    srand(1234);
    solve(v);
}

Compilation message (stderr)

meetings.cpp: In function 'int solve(vi)':
meetings.cpp:65:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 2; i < v.size(); i++) {
                 ~~^~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 71 / 71