Submission #496255

#	Time	Username	Problem	Language	Result	Execution time	Memory
496255		minhcool	Ancient Machine (JOI21_ancient_machine)	C++17	0 / 100	67 ms	8324 KiB

Anna

#include "Anna.h"
#include<bits/stdc++.h>
using namespace std;
 
//#define int long long
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
 
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
 
//const int oo = 1e18 + 7, mod = 1e9 + 7;
 
int ret[100005];
 
void Anna(int n, vector<char> S){
	int need = 0, occ = 0, pos = -1;
	for(int i = n - 1; i >= 0; i--){
		if(S[i] == 'Z' && !occ){
			occ = 1;
			pos = i;
			ret[i] = 1;
		}
		else if(S[i] == 'X' && occ && (!i || S[i - 1] != 'X')){
			ret[i] = 1;
		}
	}
	//for(int i = 0; i < n; i++) Send(ret[i]);
	// Step 1: encode the position of 'Z'
	if(pos == -1) return;
	for(int i = 0; i < 19; i++){
		if(pos & (1LL << i)) Send(1);
		else Send(0);
	}
	Send(pos >= 2 && S[pos - 1] == 'X' && S[pos - 2] != 'X');
	for(int i = pos - 2; i >= 0; i -= 10){
		if(i <= 9){
			for(int j = i; j >= 0; j--){
				if(S[j] == 'X' && (!j || S[j - 1] != 'X')) Send(1);
				else Send(0);
			}	
		}
		else{
			int tol = 0;
			for(int j = 0; j < 5; j++){
				int temp1 = i - 2 * j, temp2 = i - 2 * j - 1;
				if(S[temp1] == 'X' && S[temp1 - 1] != 'X') tol = (tol * 3 + 1);
				else if(S[temp2] == 'X' && S[temp2 - 1] != 'X') tol = (tol * 3 + 2);
				else tol = (tol + 3);
			}
			for(int j = 0; j < 8; j++){
				if(tol & (1LL << j)) Send(1);
				else Send(0);
			}
		}
	}
}
/*
void process(){
 
}
 
signed main(){
	ios_base::sync_with_stdio(0);
	process();
}*/

Bruno

#include<bits/stdc++.h>
#include "Bruno.h"
using namespace std;
 
//#define int long long
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
 
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
 
//const int N = 1e5 + 5;
 
//const int oo = 1e18 + 7, mod = 1e9 + 7;

int a[100005];

void decode(vector<int> B){
	if(!B.size()) return;
	int pos = 0;
	for(int i = 0; i < 19; i++){
		if(B[i] == 1) pos += (1LL << i);
	}
	if(pos <= 1) return;
	//cout << pos << "\n";
	//return;
	a[pos] = 1;
	if(B[19]) a[pos - 1] = 1;
	int itr = 20;
	for(int i = pos - 2; i >= 0; i -= 10){
		if(i >= 10){
			int tol = 0;
			for(int j = itr; j < itr + 8; j++){
				if(B[j]) tol += (1LL << (j - itr));
			}
			for(int j = 4; j >= 0; j--){
				int temp1 = i - 2 * j, temp2 = i - 2 * j - 1;
				if(tol % 3 == 1) a[temp1] = 1;
				if(tol % 3 == 2) a[temp2] = 1;
				tol /= 3;
			}
			itr += 8;
		}
		else{
			int tol = 0;
			for(int j = i; j >= 0; j--){
				a[j] = B[itr];
				itr++;
			}
		}
	}
}
 
void Bruno(int N, int L, vector<int> B){
	//cout << B.size() << "\n";
	for(int i = 0; i < N; i++) Remove(i);
	decode(B);
	return;
	//cout << N << " " << L << "\n";
	vector<int> not_rev;
	int pos = -1;
	for(int i = N - 1; i >= 0; i--){
		if(a[i]){
			pos = i;
			break;
		}
	}
	if(pos == -1){
		for(int i = 0; i < N; i++) Remove(i);
		return;
	}
	int lst = pos;
	for(int i = pos - 1; i >= 0; i--){
		if(!i || a[i]){
			for(int j = i + 1; j < lst; j++) Remove(j);
			Remove(i);
			lst = i;
		}
		//Remove(i);
	}
	for(int i = pos; i < N; i++) Remove(i);
}
 
/*
void process(){
 
}
 
signed main(){
	ios_base::sync_with_stdio(0);
	process();
}*/

Compilation message (stderr)

Anna.cpp: In function 'void Anna(int, std::vector<char>)':
Anna.cpp:22:6: warning: unused variable 'need' [-Wunused-variable]
   22 |  int need = 0, occ = 0, pos = -1;
      |      ^~~~

Bruno.cpp: In function 'void decode(std::vector<int>)':
Bruno.cpp:50:8: warning: unused variable 'tol' [-Wunused-variable]
   50 |    int tol = 0;
      |        ^~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95