Submission #784810

#	Time	Username	Problem	Language	Result	Execution time	Memory
784810		mindiyak	Mutating DNA (IOI21_dna)	C++17	0 / 100	52 ms	9332 KiB

dna

#include "dna.h"
#include <vector>
#include <algorithm>
#include <set>
#include <bits/stdc++.h>
#define pb push_back

using namespace std;

int chartoint(char a){
	if(a == 'A'){
		return 0;
	}if(a == 'C'){
		return 1;
	}
	return 2;
}

int makeset(int a,int b){
	map<int,int> tointmap = {{0,0},{1,1},{2,2},{10,3},{11,4},{12,5},{20,6},{21,7},{22,8}}; 
	return tointmap[(a*10 + b)];
}

vector<vector<int>> Counter(9);
vector<vector<int>> A_counter(3),B_counter(3);
int N;
vector<int> A;
vector<int> B;
vector<int> A_B;

void init(string a, string b) {
	vector<int>arr;
	N = a.size();

	vector<int> _cont(9,0);
	vector<int> _a_cont(3,0);
	vector<int> _b_cont(3,0);

	for(int i=0;i<N;i++){
		A.pb(chartoint(a[i]));
		B.pb(chartoint(b[i]));
		_cont[makeset(chartoint(a[i]),chartoint(b[i]))]++;
		_a_cont[chartoint(a[i])]++;
		_b_cont[chartoint(b[i])]++;
 
		for(int j=0;j<3;j++){
			A_counter[j].pb(_a_cont[j]);
			B_counter[j].pb(_b_cont[j]);
		}
		for(int j=0;j<9;j++){
			Counter[j].pb(_cont[j]);
		}
	}

	// cout << "A " << endl;
	// for(int i=0;i<N;i++){
	// 	cout << i << " -> ";
	// 	for(int j=0;j<3;j++){
	// 		cout << A_counter[j][i] << " ";
	// 	}cout << endl;
	// }

	// cout << "B " << endl;
	// for(int i=0;i<N;i++){
	// 	cout << i << " -> ";
	// 	for(int j=0;j<3;j++){
	// 		cout << B_counter[j][i] << " ";
	// 	}cout << endl;
	// }
	// cout << endl;
}

int get_count(vector<vector<int>> arr,int x,int y,int pos){
	return (arr[pos][y]-arr[pos][x-1]);
}

int get_distance(int x, int y) {
	return -1;
	for(int j=0;j<3;j++){
		// cout << j << " " << (A_counter[j][y]-A_counter[j][x-1]) << " " << (B_counter[j][y]-B_counter[j][x-1]) << endl;
		if(get_count(A_counter,x,y,j) != get_count(B_counter,x,y,j)){
			return -1;
		}
	}

	int ans = 0;
	vector<int> setCounter(9,0);

	for(int j=0;j<9;j++){
		setCounter[j] = get_count(Counter,x,y,j);
	}
	setCounter[0] = 0;
	setCounter[4] = 0;
	setCounter[8] = 0;

	int _set = min(setCounter[1],setCounter[3]);//01,10
	ans += _set;
	setCounter[1] -= _set;
	setCounter[3] -= _set;

	_set = min(setCounter[2],setCounter[6]);//02,20
	ans += _set;
	setCounter[2] -= _set;
	setCounter[6] -= _set;

	_set = min(setCounter[5],setCounter[7]);//12,21
	ans += _set;
	setCounter[5] -= _set;
	setCounter[7] -= _set;

	int remainder = 0;
	for(int j=0;j<9;j++){
		remainder += setCounter[j];
	}
	remainder /= 3;
	remainder *= 2;
	ans += remainder;

	return ans;
}

• Subtask 1: 0 / 21
• Subtask 2: 0 / 22
• Subtask 3: 0 / 13
• Subtask 4: 0 / 28
• Subtask 5: 0 / 16