제출 #416093

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
416093		duality	Counting Mushrooms (IOI20_mushrooms)	C++14	80.71 / 100	15 ms	452 KiB

mushrooms

#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 "mushrooms.h"

int count_mushrooms(int n) {
    int i,j,ans = 0;
    vi a,b,v;
    a.pb(0);
    for (i = 1; i < n; i++) {
        v.pb(i);
        if (v.size() == max(a.size(),b.size())) {
            if (a.size() > b.size()) {
                vi q;
                for (j = 0; j < v.size(); j++) q.pb(v[j]),q.pb(a[j]);
                int r = use_machine(q);
                ans += v.size()-r/2-1;
                if (r & 1) b.pb(v[0]);
                else a.pb(v[0]);
            }
            else {
                vi q;
                for (j = 0; j < v.size(); j++) q.pb(v[j]),q.pb(b[j]);
                int r = use_machine(q);
                ans += r/2;
                if (r & 1) a.pb(v[0]);
                else b.pb(v[0]);
            }
            v.clear();
        }
    }
    if (!v.empty()) {
        if (a.size() > b.size()) {
            vi q;
            for (j = 0; j < v.size(); j++) q.pb(v[j]),q.pb(a[j]);
            int r = use_machine(q);
            ans += v.size()-r/2-1;
            if (r & 1) b.pb(v[0]);
            else a.pb(v[0]);
        }
        else {
            vi q;
            for (j = 0; j < v.size(); j++) q.pb(v[j]),q.pb(b[j]);
            int r = use_machine(q);
            ans += r/2;
            if (r & 1) a.pb(v[0]);
            else b.pb(v[0]);
        }
        v.clear();
    }
    return a.size()+ans;
}

컴파일 시 표준 에러 (stderr) 메시지

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:68:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |                 for (j = 0; j < v.size(); j++) q.pb(v[j]),q.pb(a[j]);
      |                             ~~^~~~~~~~~~
mushrooms.cpp:76:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |                 for (j = 0; j < v.size(); j++) q.pb(v[j]),q.pb(b[j]);
      |                             ~~^~~~~~~~~~
mushrooms.cpp:88:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |             for (j = 0; j < v.size(); j++) q.pb(v[j]),q.pb(a[j]);
      |                         ~~^~~~~~~~~~
mushrooms.cpp:96:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |             for (j = 0; j < v.size(); j++) q.pb(v[j]),q.pb(b[j]);
      |                         ~~^~~~~~~~~~

• Subtask 1: 80.7143 / 100