제출 #984261

#제출 시각아이디문제언어결과실행 시간메모리
984261UnforgettableplKoala Game (APIO17_koala)C++17
63 / 100
36 ms732 KiB
#include <bits/stdc++.h>
using namespace std;
 
//#define int long long
 
void playRound(int *B, int *R);
 
int minValue(int N, int W) {
    int arr[100];fill(arr,arr+100,0);
    int res[100];fill(res,res+100,0);
    arr[0] = 1;
    playRound(arr,res);
    for(int i=0;i<N;i++)if(res[i]<=arr[i])return i;
}
 
int maxValue(int N, int W) {
    vector<int> poss(N);iota(poss.begin(), poss.end(),0);
    while(poss.size()>1){
        int arr[100];fill(arr,arr+100,0);
        int res[100];fill(res,res+100,0);
        int distrib = W/poss.size();
        for(int&i:poss)arr[i]=distrib;
        playRound(arr,res);
        poss.clear();
        for(int i=0;i<N;i++)if(arr[i] and res[i]>arr[i])poss.emplace_back(i);
    }
    return poss[0];
}
 
bool lessth(int a,int b){
    int lo = 1, hi = 16;
    while (true) {
        int mid = (lo + hi) / 2;
        int arr[100];
        fill(arr, arr + 100, 0);
        int res[100];
        fill(res, res + 100, 0);
        arr[a] = arr[b] = mid;
        playRound(arr, res);
        bool zerogud = res[a] > arr[a];
        bool onegud = res[b] > arr[b];
        if (zerogud == onegud) {
            if (zerogud) {
                lo = mid + 1;
            } else {
                hi = mid - 1;
            }
            continue;
        }
        return onegud;
    }
}
 
int greaterValue(int N, int W) {
    return lessth(0,1);
}
 
void allValues(int N, int W, int *P) {
    vector<int> permutation;
    for(int i=0;i<N;i++){
        int x = 0;
        for(int jump=64;jump;jump/=2){
            if(x+jump>permutation.size())continue;
            if(lessth(permutation[x+jump-1],i))x+=jump;
        }
        permutation.insert(permutation.begin()+x,i);
    }
    for(int i=0;i<N;i++){
        P[permutation[i]]=i+1;
    }
    return;
    if (W == 2*N) {
        // TODO: Implement Subtask 4 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
    } else {
        // TODO: Implement Subtask 5 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
    }
}

컴파일 시 표준 에러 (stderr) 메시지

koala.cpp: In function 'void allValues(int, int, int*)':
koala.cpp:63:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |             if(x+jump>permutation.size())continue;
      |                ~~~~~~^~~~~~~~~~~~~~~~~~~
koala.cpp: In function 'int minValue(int, int)':
koala.cpp:14:1: warning: control reaches end of non-void function [-Wreturn-type]
   14 | }
      | ^
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