Submission #633386

#	Time	Username	Problem	Language	Result	Execution time	Memory
633386		shmad	Koala Game (APIO17_koala)	C++17	24 / 100	123 ms	440 KiB

koala

#include "koala.h"
#include <bits/stdc++.h>

#define vt vector
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define ff first
#define ss second
#define dbg(x) cerr << #x << " = " << x << '\n'
#define bit(x, i) ((x) >> (i) & 1)

using namespace std;
using ll = long long;
using pii = pair<int, int>;
using vvt = vt< vt<int> >;

int minValue(int n, int w) {
	int a[n], b[n];
    fill(a, a + n, 0);
    a[0] = 1;
    playRound(a, b);
    for (int i = 1; i < n; i++) if (b[i] == 0) return i;
    return 0;
}

int maxValue (int n, int w) {
	vt<int> p(n);
	iota(all(p), 0ll);
	while (sz(p) != 1) {
		int a[n], b[n];
		fill(a, a + n, 0);
		int x = n / sz(p);
		for (int i: p) a[i] = x;
		playRound(a, b);
		vt<int> np;
		for (int i = 0; i < n; i++) {
			if (b[i] == x + 1) np.pb(i);
		}
		p = np;
	}
    return p[0];
}

int greaterValue (int n, int w) {
  	int a[n], b[n];
  	fill(a, a + n, 0);
  	int l = 1, r = w, ans = 1;
  	while (l <= r) {
  		int mid = l + r >> 1;
  		a[0] = a[1] = mid;
  		playRound(a, b);
  		if (b[0] > mid && b[1] > mid) ans = l = mid + 1;
  		else if (b[0] <= mid && b[1] <= mid) r = mid - 1;
  		else return (b[0] < b[1]);
  	}
	a[0] = a[1] = ans;
	playRound(a, b);
  	return (b[0] < b[1]);
}

void allValues (int n, int w, int *p) {
    if (w == n * 2) {
    } else {
    }
}

Compilation message (stderr)

koala.cpp: In function 'int greaterValue(int, int)':
koala.cpp:50:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   50 |     int mid = l + r >> 1;
      |               ~~^~~

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