oj.uz

Submission #620646

# Submission time Handle Problem Language Result Execution time Memory
620646 2022-08-03T07:49:24 Z KLPP Comparing Plants (IOI20_plants) C++14
0 / 100
 4000 ms 4436 KB 
#include "plants.h"
#include<bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=a;i<b;i++)
typedef long long int lld;
#define trav(a,v) for(auto a:v)

int n;
int K;
int arr[1000000];
int order[1000000];
void init(int k, std::vector<int> r) {
	n=r.size();
	K=k;
	rep(i,0,n)arr[i]=r[i];
	if(2*k>n){
		rep(i,0,n)order[i]=-1;
		int cnt=0;
		rep(turn,0,n){
			rep(i,0,n){
				if(arr[i]==0 && order[i]==-1){
					order[i]=cnt;
					cnt++;
					bool rev=false;
					rep(j,1,k){
						if(order[(i-j+n)%n]!=-1){
							arr[(i-j+n)%n]--;
							if(arr[(i-j+n)%n]==0)rev=true;
						}
					}
					if(rev){
						order[i]=-1;
						cnt--;
						rep(j,1,k){
							if(order[(i-j+n)%n]!=-1){
								arr[(i-j+n)%n]++;
							}
						}
					}
				}
			}
		}
	}
	return;
}
int trial[1000000];
bool visited[1000000];
bool elim(int i, bool do_it){
	if(visited[i])return false;
	if(trial[i]>0)return false;
	visited[i]=true;
	bool rev=false;
	rep(j,1,K){
		if(!visited[(i-j+n)%n]){
			trial[(i-j+n)%n]--;
			if(trial[(i-j+n)%n]<0)rev=true;
		}
	}

	if(rev){
		rep(j,1,K){
			if(!visited[(i-j+n)%n]){
				trial[(i-j+n)%n]++;
			}
		}
		visited[i]=false;
		return false;
	}else{
		if(!do_it){
			rep(j,1,K){
			if(!visited[(i-j+n)%n]){
				trial[(i-j+n)%n]++;
			}
		}
		visited[i]=false;
		}
		return true;
	}
}
int compare_plants(int x, int y) {
	if(2*K>n){
		if(order[x]>order[y])return -1;
		return 1;
	}
	rep(i,0,n)trial[i]=arr[i];
	rep(i,0,n)visited[i]=false;
	rep(turn,0,n+1){
		rep(i,0,n){
			if(i!=x && i!=y){
				elim(i,true);
			}
		}
	}
	/*rep(i,0,n)cout<<trial[i]<<" ";
	cout<<endl;
	rep(i,0,n)cout<<visited[i]<<" ";
	cout<<endl;*/
	//cout<<elim(x,false)<<" "<<elim(y,false)<<endl;
	if(elim(x,false) && elim(y,false))return 0;
	if(elim(x,false))return 1;
	return -1;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Execution timed out 4046 ms 4436 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -