Submission #1282903

#	Time	Username	Problem	Language	Result	Execution time	Memory
1282903		dosts	Koala Game (APIO17_koala)	C++20	19 / 100	9 ms	400 KiB

koala

#include "koala.h"
#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
//#define int long long
#define pii pair<int,int>
#define vi vector<int>
#define ff first
#define ss second
#define sp << " " <<
#define all(x) x.begin(),x.end()
#define big(x) ((int)(x.size()))
using namespace std;
const int MOD = 1e9+7, LIM = 1e6+1, inf = 2e9;

int minValue(int N, int W) {
    int B[N],R[N];
    B[0] = 1;
    for (int j = 1;j<N;j++) B[j] = 0;
    playRound(B,R);
    for (int j = 1;j<N;j++) {
        if (!R[j]) return j;
    }
    B[1] = 1;
    B[0] = 0;
    playRound(B,R);
    if (!R[0]) return 0;
    for (int j = 1;j<N;j++) {
        if (!R[j]) return j;
    }
    return -1;
}


int maxValue(int N, int W) {
    assert(N == W  && W == 100);
    int B[N]{},R[N]{};
    for (int i = 0;i<N;i++) B[i] = 1;
    vi top50;
    playRound(B,R);
    for (int i = 0;i<N;i++) if (R[i] == 2) top50.push_back(i);
    for (int i = 0;i<N;i++) B[i] = 0;
    for (auto it : top50) B[it] = 2; 
    playRound(B,R);
    vi top25;
    for (int i = 0;i<N;i++) if (R[i] == 3) top25.push_back(i);
    for (int i = 0;i<N;i++) B[i] = 0;
    for (auto it : top25) B[it] = 4; 
    playRound(B,R);
    vi top9;
    for (int i = 0;i<N;i++) if (R[i] == 5) top9.push_back(i);
    for (int i = 0;i<N;i++) B[i] = 0;
    for (auto it : top9) B[it] = 11; 
    playRound(B,R);
    for (int i = 0;i<N;i++) if (R[i] == 12) return i;
}

int greaterValue(int N, int W) {
    int B[N]{},R[N];
    int l = 1;
    int r = 9;
    while (l<=r) {
        int mid = (l+r) >> 1;
        B[0] = B[1] = mid;
        if ((R[0] > mid) != (R[1] > mid)) return R[0] < R[1];
        if (R[0] > mid) l = mid+1;
        else r = mid-1;
    }
    B[0] = B[1] = l;
    if (R[0] > l) return 0;
    return 1;
}

void allValues(int N, int W, int *P) {

}

Compilation message (stderr)

koala.cpp: In function 'int maxValue(int, int)':
koala.cpp:56:1: warning: control reaches end of non-void function [-Wreturn-type]
   56 | }
      | ^

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