oj.uz

답안 #1089301

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1089301 2024-09-16T09:40:18 Z vjudge1 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
0 / 100
 0 ms 348 KB 
//don't copy pls)
/*TAAK ZDES NADO RECURSIU PISAT*/

//I'm not in the danger i am the DANGER
#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#define ll long long
#define pb push_back
#define int long long
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
#define pii pair<int,int>
#define sigma signed
using namespace std;
using namespace __gnu_pbds;
const int N = 3e5 + 5;
int mod = 1e9 + 7;
const int INF = 1e18;
int n;
int cnt1 = 0 , cnt2 = 0 , cnt3 = 0;
string s,t;
vector <string> q;
void rec(char last , int sz){
	if(sz == n){
		q.pb(t);
		return;
	}
	int ans = 0;
	if(last != 'R' && cnt1){
		cnt1--;
		t.pb('R');
		rec('R' , sz + 1);
		t.pop_back();
		cnt1++;
	}
	if(last != 'G' && cnt2){
		cnt2--;
		t.pb('G');
		rec('G' , sz + 1);
		t.pop_back();
		cnt2++;
	}
	if(last != 'Y' && cnt3){
		cnt3--;
		t.pb('Y');
		rec('Y' , sz + 1);
		t.pop_back();
		cnt3--;
	}
}
void Gold(){
	cin >> n >> s;
	s = '+' + s;
	int ans = 0 , ans1 = INF;
	for(auto it : s){
		if(it == 'R') cnt1++;
		else if(it == 'G') cnt2++;
		if(it == 'Y') cnt3++;
	}
	// cout << cnt1 << ' ' <<cnt2 << ' ' << cnt3 << '\n';
	// if(cnt1 + cnt2 == n){
		// string t = s;
		// if(abs(cnt1 - cnt2) > 1){
			// cout << "-1\n";
			// return;
		// }
		// // cout << cnt1 << ' ' << cnt2 << '\n';
		// if(cnt1 >= cnt2){
			// for(int i = 1 ; i <= n ; i++){
				// if(i % 2){
					// for(int j = i ; j <= n ; j++){
						// if(s[j] == 'R'){
							// ans += (j - i);
							// swap(s[i] , s[j]);
							// // cout << i << ' ' << j << '\n';
							// break;
						// }
					// }
				// }
				// else{
					// for(int j = i ; j <= n ; j++){
						// if(s[j] == 'G'){
							// ans += (j - i);
							// swap(s[i] , s[j]);
							// break;
						// }
					// }
				// }
			// }
			// ans1 = ans;
		// }
		// if(cnt2 >= cnt1){
			// ans = 0;
			// s = t;
			// for(int i = 1 ; i <= n ; i++){
				// if(i % 2 == 0){
					// for(int j = i ; j <= n ; j++){
						// if(s[j] == 'R'){
							// ans += (j - i);
							// swap(s[i] , s[j]);
							// break;
						// }
					// }
				// }
				// else{
					// for(int j = i ; j <= n ; j++){
						// if(s[j] == 'G'){
							// ans += (j - i);
							// swap(s[i] , s[j]);
							// break;
						// }
					// }
				// }
			// } 	
		// }
		// cout << min(ans1 , ans);
		// return;
	// }
	// else{
		string qq = s;
		rec('A' , 0);
		ans = INF;
		for(auto it : q){
			s = qq;
			int ans1 = 0;
			t = '=' + it;
			// cout << t << '\n';
			for(int i = 1 ; i <= n ; i++){
				bool ok = 0;
				for(int j = i ; j <= n ; j++){
					if(t[i] == s[j]){
						ans1 += (j - i);
						swap(s[i] , s[j]);
						ok = 1;
						// cout << i << ' ' << j << ' ' << ans1 << '\n';
						break;
					}
				}
				if(!ok){
					ans1 = INF;
					break;
				}
			}
			// cout << t << ' ' << ans1 << '\n';
			ans = min(ans , ans1);
		}
		if(ans > s.size()){
			cout << "-1\n";
			return;
		}
		cout << ans;
	// }
}
sigma main(){
	//freopen("txt.in","r",stdin);
	//freopen("txt.out","w",stdout);
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	srand(time(0));
	int TT = 1;
	// cin >> TT;
	for(int i = 1 ; i <= TT ; i++){
		//cout << "Case " << i << ": ";
		Gold();
	}
}

Compilation message

joi2019_ho_t3.cpp: In function 'void rec(char, long long int)':
joi2019_ho_t3.cpp:29:6: warning: unused variable 'ans' [-Wunused-variable]
   29 |  int ans = 0;
      |      ^~~
joi2019_ho_t3.cpp: In function 'void Gold()':
joi2019_ho_t3.cpp:148:10: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  148 |   if(ans > s.size()){
      |      ~~~~^~~~~~~~~~
joi2019_ho_t3.cpp:55:16: warning: unused variable 'ans1' [-Wunused-variable]
   55 |  int ans = 0 , ans1 = INF;
      |                ^~~~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -