Submission #983852

#	Time	Username	Problem	Language	Result	Execution time	Memory
983852		vjudge1	Koala Game (APIO17_koala)	C++17	4 / 100	4 ms	460 KiB

koala

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

int minValue(int N, int W) {
	int v[N], w[N];
	v[0] = 1;
	w[0] = 0;
	for (int i = 1; i < N; i++) v[i] = 0, w[i] = 0;
	playRound(v, w);
	for (int i = 0; i < N; i++) {
		if (!w[i]) return i;
	}
    // TODO: Implement Subtask 1 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    return 0;
}

int maxValue(int N, int W) {
	int v[N], w[N];
	int l = 0, r = N, md, ans;
	while (l <= r) {
		md = (l + r) / 2;
		v[0] = md + 1;
		w[0] = 0;
		for (int i = 1; i < N; i++) v[i] = md, w[i] = 0;
		playRound(v, w);
		bool f = 0;
		for (int i = 0; i < N; i++) {
			if (w[i] == md) f = 1;
		}
		if (!f) r = md - 1;
		else ans = md, l = md + 1;
	}
    // TODO: Implement Subtask 2 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    return 0;
}

int greaterValue(int N, int W) {
	int v[N], w[N];
	int l = 0, r = N, md, ans;
	while (l <= r) {
		md = (l + r) / 2;
		v[0] = md;
		v[1] = md;
		w[0] = 0;
		for (int i = 1; i < N; i++) v[i] = md, w[i] = 0;
		playRound(v, w);
		if (v[0] > md && v[1] > md) l = md + 1;
		else if (v[0] <= md && v[1] <= md) r = md - 1;
		else {
			if (v[0] > v[1]) return 0;
			else return 1;
		}
	}
    // TODO: Implement Subtask 3 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    return 0;
}

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.
    } else {
        // TODO: Implement Subtask 5 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
    }
}

Compilation message (stderr)

koala.cpp: In function 'int maxValue(int, int)':
koala.cpp:22:24: warning: variable 'ans' set but not used [-Wunused-but-set-variable]
   22 |  int l = 0, r = N, md, ans;
      |                        ^~~
koala.cpp: In function 'int greaterValue(int, int)':
koala.cpp:44:24: warning: unused variable 'ans' [-Wunused-variable]
   44 |  int l = 0, r = N, md, ans;
      |                        ^~~

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