Submission #966938

#	Time	Username	Problem	Language	Result	Execution time	Memory
966938		salmon	Koala Game (APIO17_koala)	C++14	47 / 100	78 ms	696 KiB

koala

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

int minValue(int N, int W) {
    int res[N];
    int in[N];

    for(int i = 0; i < N; i++){
        in[i] = 0;
    }
    in[0] = 1;

    playRound(in,res);

    int p = -1;
    for(int i = 0; i < N; i++){
        if(res[i] <= in[i]){
            p = i;
        }
    }

    return p;
}

int maxValue(int N, int W) {
    set<int> sat;
    int res[N];
    int in[N];

    for(int i = 0; i < N; i++){
        sat.insert(i);
        in[i] = 0;
    }

    while(sat.size() != 1){
        int num = 100 / sat.size();

        for(int i = 0; i < N; i++){
            in[i] = 0;
        }

        for(int i : sat){
            in[i] = num;
        }

        playRound(in,res);

        for(int i = 0; i < N; i++){
            if(res[i] <= in[i] && sat.find(i) != sat.end()){
                sat.erase(i);
            }
        }
    }



    for(int i : sat) return i;
}

//9 5 3
int greaterValue(int N, int W) {
    int in[N];
    int res[N];

    int it = minValue(N, W);

    if(it == 0) return 1;
    if(it == 1) return 0;

    for(int i = 0; i < N; i++){
        in[i] = 0;
    }

    in[0] = 4;
    in[1] = 4;

    playRound(in,res);

    if(res[0] > in[0] && res[1] <= in[1]) return 0;
    if(res[1] > in[1] && res[0] <= in[0]) return 1;

    if(res[0] > in[0]){
        in[0] = 8;
        in[1] = 8;
    }
    else{
        in[0] = 2;
        in[1] = 2;
    }

    playRound(in,res);

    if(res[0] > in[0] && res[1] <= in[1]) return 0;
    if(res[1] > in[1] && res[0] <= in[0]) return 1;

    in[0] = 2;
    in[1] = 2;
}

bool b(int a, int b){
    if(b == -1) return true;
    if(a == -1) return false;

    int in[100];
    int res[100];

    for(int i = 0; i < 100; i++){
        in[i] = 0;
    }

    in[a] = 100;
    in[b] = 100;

    playRound(in,res);

    return in[b] < res[b];
}

bool c(int a, int b){
    if(b == -1) return true;
    if(a == -1) return false;

    int in[100];
    int res[100];

    for(int i = 0; i < 100; i++){
        in[i] = 0;
    }

    in[a] = 4;
    in[b] = 4;

    playRound(in,res);

    if(res[a] > in[a] && res[b] <= in[b]) return false;
    if(res[b] > in[b] && res[a] <= in[a]) return true;

    if(res[a] > in[a]){
        in[0] = 8;
        in[1] = 8;
    }
    else{
        in[0] = 2;
        in[1] = 2;
    }

    playRound(in,res);

    if(res[a] > in[a] && res[b] <= in[b]) return false;
    if(res[b] > in[b] && res[a] <= in[a]) return true;
}

void allValues(int N, int W, int *P) {
    if (W == 2*N) {
        queue<vector<int>> q;
        vector<int> v;

        for(int i = 0; i < N; i++){
            vector<int> temp = {i,-1};
            q.push(temp);
        }

        while(q.size() != 1){
            vector<int> v1,v2,v3;

            v1 = q.front();
            q.pop();
            v2 = q.front();
            q.pop();

            int it1,it2;
            it1 = 0;
            it2 = 0;

            for(int i = 0; i < v1.size() + v2.size() - 1; i++){
                if(b(v1[it1],v2[it2])){
                    v3.push_back(v1[it1]);
                    it1++;
                }
                else{
                    v3.push_back(v2[it2]);
                    it2++;
                }
            }

            q.push(v3);
        }

        v = q.front();

        for(int i = 0; i < N; i++){
            P[v[i]] = i + 1;
        }

    }
    else{
        queue<vector<int>> q;

        int l = minValue(N,W);

        P[l] = 1;

        for(int i = 0; i < N; i++){
            if(i == l) continue;
            q.push({i,-1});
        }

        while(q.size() != 1){
            vector<int> v1 = q.front();
            q.pop();
            vector<int> v2 = q.front();
            q.pop();

            vector<int> v3;

            int it1 = 0;
            int it2 = 0;
            for(int i = 0; i < v1.size() + v2.size() - 1; i++){
                if(c(v1[it1],v2[it2])){
                    v3.push_back(v1[it1]);
                    it1++;
                }
                else{
                    v3.push_back(v2[it2]);
                    it2++;
                }
            }

            q.push(v3);
        }

        vector<int> v = q.front();

        for(int i = 0; i < N - 1; i++){
            P[v[i]] = i + 2;
        }
    }
}

Compilation message (stderr)

koala.cpp: In function 'void allValues(int, int, int*)':
koala.cpp:176:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  176 |             for(int i = 0; i < v1.size() + v2.size() - 1; i++){
      |                            ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
koala.cpp:219:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  219 |             for(int i = 0; i < v1.size() + v2.size() - 1; i++){
      |                            ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
koala.cpp: In function 'int maxValue(int, int)':
koala.cpp:27:14: warning: control reaches end of non-void function [-Wreturn-type]
   27 |     set<int> sat;
      |              ^~~
koala.cpp: In function 'int greaterValue(int, int)':
koala.cpp:98:11: warning: control reaches end of non-void function [-Wreturn-type]
   98 |     in[1] = 2;
      |     ~~~~~~^~~
koala.cpp: In function 'bool c(int, int)':
koala.cpp:152:1: warning: control reaches end of non-void function [-Wreturn-type]
  152 | }
      | ^

• Subtask 1: 4 / 4
• Subtask 2: 15 / 15
• Subtask 3: 18 / 18
• Subtask 4: 10 / 10
• Subtask 5: 0 / 53