제출 #347561

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
347561		nicholask	코알라 (APIO17_koala)	C++14	70 / 100	86 ms	492 KiB

koala

#include "koala.h"
#include <bits/stdc++.h>
using namespace std;
int minValue(int N, int W) {
    // TODO: Implement Subtask 1 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    int b[N]={},r[N]={};
    b[0]=1;
    playRound(b,r);
	if (r[0]<2) return 0;
	else {
		for (int i=1; i<N; i++){
			if (r[i]<1) return i;
		}
	}
    return 0;
}

int maxValue(int N, int W) {
    // TODO: Implement Subtask 2 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    vector <int> rem;
    for (int i=0; i<N; i++) rem.push_back(i);
    while (rem.size()>1){
    	int b[N]={},r[N]={};
    	for (auto&i:rem) b[i]=W/rem.size();
    	playRound(b,r);
    	vector <int> w;
    	for (int i=0; i<N; i++){
    		if (b[i]&&r[i]>b[i]) w.push_back(i);
		}
		rem=w;
	}
    return rem[0];
}

int greaterValue(int N, int W) {
    // TODO: Implement Subtask 3 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    int lb=1,rb=10;
    while (lb<rb){
    	int m=(lb+rb)>>1;
    	int b[N]={},r[N]={};
    	b[0]=b[1]=m;
    	playRound(b,r);
    	if (r[0]<=b[0]&&r[1]<=b[1]) rb=m-1;
    	else if (r[0]>b[0]&&r[1]>b[1]) lb=m+1;
    	else if (r[0]>b[0]) return 0;
    	else return 1;
	}
	int b[N]={},r[N]={};
	b[0]=b[1]=lb;
	playRound(b,r);
	if (r[0]>b[0]) return 0;
	else return 1;
}

bool cmp(int x,int y){
	int b[100]={},r[100]={};
	b[x]=b[y]=100;
	playRound(b,r);
	return (r[x]<=b[x]);
}

vector <int> msort(vector <int> v){
	if (v.size()==1) return v;
	vector <int> f,s;
	for (int i=0; i<v.size(); i++){
		if (i<(v.size()+1)/2) f.push_back(v[i]);
		else s.push_back(v[i]);
	}
	f=msort(f);
	s=msort(s);
	vector <int> ans;
	int p1=0,p2=0;
	while (p1<f.size()&&p2<s.size()){
		if (cmp(f[p1],s[p2])){
			ans.push_back(f[p1]);
			p1++;
		} else {
			ans.push_back(s[p2]);
			p2++;
		}
	}
	for (int i=p1; i<f.size(); i++) ans.push_back(f[i]);
	for (int i=p2; i<s.size(); i++) ans.push_back(s[i]);
	return ans;
}
bool cmp1(int x,int y){
	int lb=1,rb=10;
	while (lb<rb){
		int m=(lb+rb)>>1;
		int b[100]={},r[100]={};
		b[x]=b[y]=m;
		playRound(b,r);
		if (r[x]<=b[x]&&r[y]<=b[y]) rb=m-1;
		else if (r[x]>b[x]&&r[y]>b[y]) lb=m+1;
		else if (r[x]>b[x]) return 0;
		else return 1;
	}
	int b[100]={},r[100]={};
	b[x]=b[y]=lb;
	playRound(b,r);
	if (r[x]>b[x]) return 0;
	else return 1;
}
void allValues(int N, int W, int *P) {
    if (W == 2*N) {
        // TODO: Implement Subtask 4 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
        vector <int> v(N);
        for (int i=0; i<N; i++) v[i]=i;
        vector <int> ans=msort(v);
        for (int i=0; i<N; i++) P[ans[i]]=i+1;
    } else {
        // TODO: Implement Subtask 5 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
        vector <int> v(N);
        for (int i=0; i<N; i++) v[i]=i;
        sort(v.begin(),v.end(),cmp1);
        for (int i=0; i<N; i++) P[v[i]]=i+1;
	}
}

컴파일 시 표준 에러 (stderr) 메시지

koala.cpp: In function 'std::vector<int> msort(std::vector<int>)':
koala.cpp:71:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |  for (int i=0; i<v.size(); i++){
      |                ~^~~~~~~~~
koala.cpp:72:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |   if (i<(v.size()+1)/2) f.push_back(v[i]);
      |       ~^~~~~~~~~~~~~~~
koala.cpp:79:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |  while (p1<f.size()&&p2<s.size()){
      |         ~~^~~~~~~~~
koala.cpp:79:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |  while (p1<f.size()&&p2<s.size()){
      |                      ~~^~~~~~~~~
koala.cpp:88:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |  for (int i=p1; i<f.size(); i++) ans.push_back(f[i]);
      |                 ~^~~~~~~~~
koala.cpp:89:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |  for (int i=p2; i<s.size(); i++) ans.push_back(s[i]);
      |                 ~^~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 15 / 15
• Subtask 3: 18 / 18
• Subtask 4: 10 / 10
• Subtask 5: 23 / 53