oj.uz

Submission #497448

# Submission time Handle Problem Language Result Execution time Memory
497448 2021-12-23T06:02:24 Z vinnipuh01 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
20 / 100
 500 ms 296 KB 
#include <iostream>
#include <bits/stdc++.h>
#include <cmath>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <stack>
#include <string>
#include <map>
#include <queue>
#define int long long

using namespace std;

const long long oo = 1000000000000000000;

long long  sum, ans = 0, mx = 0, mn = 1000000000, num, pos;


/*
    ViHHiPuh

   (( `'-""``""-'` ))
     )-__-_.._-__-(
   / --- (o _ o) --- \
   \ .-* ( .0. ) *-. /
   _'-. ,_ '=' _, .-'_
  / `;#'#'# - #'#'#;` \
 \_)) -----'#'----- ((_/
      # --------- #
  '# ------- ------ #'
  /..-'# ------- #'-.\
  _\...-\'# -- #'/-.../_
  ((____)- '#' -(____))


    cout << fixed << setprecision(6) << x;

    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    freopen ( "sum.in", "r", stdin )
*/

int n;
string s, ss;

int f( int o = 0 ) {
	if ( o == s.size() )
		return 0;
	int mnn = oo;
	int r, g, y;
	r = g = y = -1;
	for ( int i = o; i < s.size(); i ++ ) {
		if ( ss[ i ] == 'R' && !( ~r ) ) {
			r = i;
		}
		if ( ss[ i ] == 'Y' && !( ~y ) )
			y = i;
		if ( ss[ i ] == 'G' && !( ~g ) )
			g = i;
	}
	if ( o && ss[ o - 1 ] == 'Y' )
		y = -1;
	if ( o && ss[ o - 1 ] == 'G' )
		g = -1;
	if ( o && ss[ o - 1 ] == 'R' )
		r = -1;
	if ( r != -1 ) {
		for ( int i = r - 1; i >= o; i -- ) {
			swap( ss[ i ], ss[ i + 1 ] );
		} 
		mnn = min( mnn, f( o + 1 ) + ( r - o ) );
		for ( int i = o + 1; i <= r; i ++ ) {
			swap( ss[ i ], ss[ i - 1 ] );
		} 
	}
	if ( ~g ) {
		for ( int i = g - 1; i >= o; i -- ) {
			swap( ss[ i ], ss[ i + 1 ] );
		} 
		mnn = min( mnn, f( o + 1 ) + ( g - o ) );
		for ( int i = o + 1; i <= g; i ++ ) {
			swap( ss[ i ], ss[ i - 1 ] );
		} 
	}
	if ( ~y ) {
		for ( int i = y - 1; i >= o; i -- ) {
			swap( ss[ i ], ss[ i + 1 ] );
		} 
		mnn = min( mnn, f( o + 1 ) + ( y - o ) );
		for ( int i = o + 1; i <= y; i ++ ) {
			swap( ss[ i ], ss[ i - 1 ] );
		} 
	}
	return mnn;
}

main () {
	cin >> n;
	cin >> s;
	ss = s;
	ans = f(0);
	if ( ans == oo )
		cout << -1;
	else
		cout << ans;
}

Compilation message

joi2019_ho_t3.cpp: In function 'long long int f(long long int)':
joi2019_ho_t3.cpp:50:9: 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]
   50 |  if ( o == s.size() )
      |       ~~^~~~~~~~~~~
joi2019_ho_t3.cpp:55:21: 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]
   55 |  for ( int i = o; i < s.size(); i ++ ) {
      |                   ~~^~~~~~~~~~
joi2019_ho_t3.cpp: At global scope:
joi2019_ho_t3.cpp:100:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  100 | main () {
      | ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 272 KB Output is correct
5 Correct 1 ms 272 KB Output is correct
6 Correct 2 ms 292 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 292 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 292 KB Output is correct
17 Correct 0 ms 292 KB Output is correct

Subtask #2
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 272 KB Output is correct
5 Correct 1 ms 272 KB Output is correct
6 Correct 2 ms 292 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 292 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 292 KB Output is correct
17 Correct 0 ms 292 KB Output is correct
18 Execution timed out 1082 ms 204 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 288 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 272 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 272 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 292 KB Output is correct
16 Correct 1 ms 296 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 272 KB Output is correct
5 Correct 1 ms 272 KB Output is correct
6 Correct 2 ms 292 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 292 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 292 KB Output is correct
17 Correct 0 ms 292 KB Output is correct
18 Execution timed out 1082 ms 204 KB Time limit exceeded
19 Halted 0 ms 0 KB -