oj.uz

Submission #99916

# Submission time Handle Problem Language Result Execution time Memory
99916 2019-03-08T17:08:38 Z TadijaSebez Koala Game (APIO17_koala) C++11
79 / 100
 98 ms 512 KB 
#include "koala.h"
#include <bits/stdc++.h>
using namespace std;
const int N=105;
int A[N],B[N];
int minValue(int N, int W) {
	// TODO: Implement Subtask 1 solution here.
	// You may leave this function unmodified if you are not attempting this
	// subtask.
	A[0]=1;
	for(int i=1;i<N;i++) A[i]=0;
	playRound(A,B);
	for(int i=0;i<N;i++) if(A[i]>=B[i]) return i;
	return -1;
}

void Clear(int N, int val=0){ for(int i=0;i<N;i++) A[i]=val;}
int maxValue(int N, int W) {
	// TODO: Implement Subtask 2 solution here.
	// You may leave this function unmodified if you are not attempting this
	// subtask.
	vector<int> cand(N);
	for(int i=0;i<N;i++) cand[i]=i;
	while(cand.size()>1)
	{
		Clear(N);
		int mx=0;while((mx+1)*(mx+2)/2<N) mx++;
		int put=min(W/(int)cand.size(),mx-1);
		for(int i:cand) A[i]=put;
		playRound(A,B);
		cand.clear();
		for(int i=0;i<N;i++) if(A[i]>0 && B[i]>A[i]) cand.push_back(i);
	}
	return cand[0];
}

int greaterValue(int N, int W) {
	// TODO: Implement Subtask 3 solution here.
	// You may leave this function unmodified if you are not attempting this
	// subtask.
	int top=0,bot=1,mid;
	while((top+1)*(top+2)/2<N) top++;
	while(top>=bot)
	{
		mid=top+bot>>1;
		Clear(N);
		A[0]=A[1]=mid;
		playRound(A,B);
		if(B[0]>A[0] && B[1]>A[1]) bot=mid+1;
		else if(B[0]<=A[0] && B[1]<=A[1]) top=mid-1;
		else break;
	}
	if(A[0]<B[0]) return 0;
	else return 1;
}
bool comp(int x, int y, int N, int W)
{
	Clear(N);
	A[x]=A[y]=W/2;
	playRound(A,B);
	if(A[x]<B[x]) return 0;
	if(A[y]<B[y]) return 1;
}
bool comp2(int x, int y, int N, int W)
{
	int top=0,bot=1,mid;
	while((top+1)*(top+2)/2<N) top++;
	while(top>=bot)
	{
		mid=top+bot>>1;
		Clear(N);
		A[x]=A[y]=mid;
		playRound(A,B);
		if(B[x]>A[x] && B[y]>A[y]) bot=mid+1;
		else if(B[x]<=A[x] && B[y]<=A[y]) top=mid-1;
		else break;
	}
	if(A[x]<B[x]) return 0;
	else return 1;
}
int C[N],D[N];
void MergeSort(int l, int r, function<bool(int,int)> cmp)
{
	if(l==r) return;
	int mid=l+r>>1;
	MergeSort(l,mid,cmp);
	MergeSort(mid+1,r,cmp);
	int i=l,j=mid+1,k=l;
	while(i<=mid || j<=r)
	{
		if(i>mid) D[k++]=C[j++];
		else if(j>r) D[k++]=C[i++];
		else if(cmp(C[i],C[j])) D[k++]=C[i++];
		else D[k++]=C[j++];
	}
	for(i=l;i<=r;i++) C[i]=D[i];
}
void QuickSort(int l, int r, function<bool(int,int)> cmp)
{
	if(l>=r) return;
	if(r-l<=4 && 0)
	{
		for(int i=l+1,j;i<=r;i++)
		{
			int tmp=C[i];
			for(j=i-1;j>=l;j--)
			{
				if(cmp(tmp,C[j])) C[j+1]=C[j];
				else break;
			}
			C[j+1]=tmp;
		}
		return;
	}
	int pivot=rand()%(r-l+1)+l;
	swap(C[pivot],C[r]);
	int i,j=l;
	for(i=l;i<r;i++)
	{
		if(cmp(C[i],C[r])) swap(C[i],C[j++]);
	}
	QuickSort(l,j-1,cmp);
	QuickSort(j,r,cmp);
}
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.
		for(int i=0;i<N;i++) C[i]=i;
		MergeSort(0,N-1,[&](int x, int y){ return comp(x,y,N,W);});
		for(int i=0;i<N;i++) P[C[i]]=i+1;
	} else {
		// TODO: Implement Subtask 5 solution here.
		// You may leave this block unmodified if you are not attempting this
		// subtask.
		srand(time(0));
		Clear(N,1);
		playRound(A,B);
		int j=0;
		for(int i=0;i<N;i++) if(B[i]<=A[i]) C[j++]=i;
		int h=j;
		for(int i=0;i<N;i++) if(B[i]>A[i]) C[j++]=i;
		Clear(N);
		A[0]=1;
		playRound(A,B);
		int mn;
		for(int i=0;i<N;i++) if(A[i]>=B[i]) mn=i;
		for(int i=0;i<N;i++) if(C[i]==mn) swap(C[i],C[0]);
		MergeSort(1,h-1,[&](int x, int y){ return comp2(x,y,N,W);});
		MergeSort(h,N-1,[&](int x, int y){ return comp2(x,y,N,W);});
		for(int i=0;i<N;i++) P[C[i]]=i+1;
	}
}

Compilation message

koala.cpp: In function 'int greaterValue(int, int)':
koala.cpp:45:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   mid=top+bot>>1;
       ~~~^~~~
koala.cpp: In function 'bool comp2(int, int, int, int)':
koala.cpp:70:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   mid=top+bot>>1;
       ~~~^~~~
koala.cpp: In function 'void MergeSort(int, int, std::function<bool(int, int)>)':
koala.cpp:85:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=l+r>>1;
          ~^~
koala.cpp: In function 'bool comp(int, int, int, int)':
koala.cpp:63:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
koala.cpp: In function 'void allValues(int, int, int*)':
koala.cpp:149:24: warning: 'mn' may be used uninitialized in this function [-Wmaybe-uninitialized]
   for(int i=0;i<N;i++) if(C[i]==mn) swap(C[i],C[0]);
                        ^~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 7 ms 384 KB Output is correct
4 Correct 6 ms 384 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 384 KB Output is correct
2 Correct 14 ms 384 KB Output is correct
3 Correct 13 ms 384 KB Output is correct
4 Correct 14 ms 384 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 504 KB Output is correct
2 Correct 54 ms 396 KB Output is correct
3 Correct 46 ms 384 KB Output is correct
4 Correct 53 ms 424 KB Output is correct
5 Correct 54 ms 512 KB Output is correct
6 Correct 98 ms 504 KB Output is correct
7 Correct 55 ms 384 KB Output is correct
8 Correct 49 ms 384 KB Output is correct
9 Correct 48 ms 384 KB Output is correct
10 Correct 52 ms 384 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 384 KB Output is correct
2 Correct 34 ms 384 KB Output is correct
3 Correct 29 ms 384 KB Output is correct
4 Correct 28 ms 384 KB Output is correct
5 Correct 30 ms 376 KB Output is correct
6 Correct 31 ms 384 KB Output is correct
7 Correct 33 ms 384 KB Output is correct
8 Correct 30 ms 384 KB Output is correct
9 Correct 29 ms 384 KB Output is correct
10 Correct 40 ms 376 KB Output is correct
11 Correct 32 ms 384 KB Output is correct
12 Correct 19 ms 384 KB Output is correct
13 Correct 31 ms 384 KB Output is correct
14 Correct 28 ms 504 KB Output is correct
15 Correct 29 ms 376 KB Output is correct
16 Correct 27 ms 384 KB Output is correct
17 Correct 29 ms 384 KB Output is correct
18 Correct 27 ms 384 KB Output is correct
19 Correct 27 ms 376 KB Output is correct
20 Correct 25 ms 384 KB Output is correct

Subtask #5
32.0 / 53.0

# Verdict Execution time Memory Grader output
1 Partially correct 11 ms 384 KB Output is partially correct
2 Partially correct 20 ms 384 KB Output is partially correct
3 Partially correct 17 ms 384 KB Output is partially correct
4 Partially correct 16 ms 384 KB Output is partially correct
5 Partially correct 16 ms 384 KB Output is partially correct
6 Partially correct 20 ms 384 KB Output is partially correct
7 Partially correct 46 ms 384 KB Output is partially correct
8 Partially correct 18 ms 380 KB Output is partially correct
9 Partially correct 18 ms 384 KB Output is partially correct
10 Partially correct 16 ms 384 KB Output is partially correct
11 Partially correct 18 ms 384 KB Output is partially correct
12 Partially correct 11 ms 384 KB Output is partially correct
13 Partially correct 23 ms 384 KB Output is partially correct
14 Partially correct 16 ms 376 KB Output is partially correct
15 Partially correct 16 ms 380 KB Output is partially correct
16 Partially correct 16 ms 384 KB Output is partially correct
17 Partially correct 18 ms 384 KB Output is partially correct
18 Partially correct 16 ms 384 KB Output is partially correct
19 Partially correct 16 ms 384 KB Output is partially correct
20 Partially correct 16 ms 384 KB Output is partially correct
21 Partially correct 17 ms 384 KB Output is partially correct
22 Partially correct 16 ms 376 KB Output is partially correct
23 Partially correct 13 ms 384 KB Output is partially correct
24 Partially correct 19 ms 384 KB Output is partially correct
25 Partially correct 20 ms 376 KB Output is partially correct
26 Partially correct 18 ms 384 KB Output is partially correct
27 Partially correct 28 ms 384 KB Output is partially correct
28 Partially correct 17 ms 384 KB Output is partially correct
29 Partially correct 16 ms 384 KB Output is partially correct
30 Partially correct 16 ms 384 KB Output is partially correct
31 Partially correct 16 ms 384 KB Output is partially correct
32 Partially correct 16 ms 380 KB Output is partially correct
33 Partially correct 18 ms 384 KB Output is partially correct
34 Partially correct 13 ms 384 KB Output is partially correct
35 Partially correct 19 ms 384 KB Output is partially correct
36 Partially correct 21 ms 376 KB Output is partially correct
37 Partially correct 19 ms 384 KB Output is partially correct
38 Partially correct 15 ms 384 KB Output is partially correct
39 Partially correct 15 ms 384 KB Output is partially correct
40 Partially correct 17 ms 384 KB Output is partially correct