#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, a[ 1000001 ], mp[ 1000001 ];
vector <pair<int, int> > v;
set <int> vv;
int l, r;
main () {
cin >> n;
for ( int i = 0; i < n; i ++ )
cin >> a[ i ];
int bl;
mn = oo;
for ( int mask = 0; mask < ( 1 << n ); mask ++ ) {
bl = ( mask & 1 );
v.clear();
vv.clear();
ans = 0;
l = 0;
for ( int i = 0; i < n; i ++ ) {
if ( (bool)( mask & ( 1 << i ) ) ^ (bool)bl ) {
bl = mask & ( 1 << i );
v.push_back( { l, i - 1 } );
l = i;
}
}
v.push_back( { l, n - 1 } );
for ( auto i : v ) {
for ( int j = i.first + 1; j <= i.second; j ++ ) {
if ( a[ j ] < a[ j - 1 ] ) {
ans = 1;
break;
}
}
if ( ans )
break;
}
if ( ans )
continue;
for ( int j = v.front().first; j <= v.front().second; j ++ )
vv.insert( a[ j ] );
for ( int i = 1; i < v.size(); i ++ ) {
auto it = vv.upper_bound( a[ v[ i ].first ] );
if ( it != vv.end() && *it < a[ v[ i ].second ] ) {
ans = 1;
break;
}
for ( int j = v[ i ].first; j <= v[ i ].second; j ++ )
vv.insert( a[ j ] );
}
if ( !ans ) {
num = v.size();
for ( auto i : v )
mn = min( mn, num );
}
}
cout << mn;
}
/*
6
3 6 4 5 1 2
*/
Compilation message
money.cpp:51:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
51 | main () {
| ^~~~
money.cpp: In function 'int main()':
money.cpp:85:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
85 | for ( int i = 1; i < v.size(); i ++ ) {
| ~~^~~~~~~~~~
money.cpp:96:15: warning: variable 'i' set but not used [-Wunused-but-set-variable]
96 | for ( auto i : v )
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
304 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
308 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
304 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
304 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
308 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
304 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
4 ms |
308 KB |
Output is correct |
18 |
Correct |
2 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
119 ms |
212 KB |
Output is correct |
21 |
Correct |
125 ms |
308 KB |
Output is correct |
22 |
Correct |
129 ms |
292 KB |
Output is correct |
23 |
Correct |
124 ms |
308 KB |
Output is correct |
24 |
Correct |
116 ms |
300 KB |
Output is correct |
25 |
Correct |
124 ms |
296 KB |
Output is correct |
26 |
Correct |
116 ms |
292 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
304 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
308 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
304 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
4 ms |
308 KB |
Output is correct |
18 |
Correct |
2 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
119 ms |
212 KB |
Output is correct |
21 |
Correct |
125 ms |
308 KB |
Output is correct |
22 |
Correct |
129 ms |
292 KB |
Output is correct |
23 |
Correct |
124 ms |
308 KB |
Output is correct |
24 |
Correct |
116 ms |
300 KB |
Output is correct |
25 |
Correct |
124 ms |
296 KB |
Output is correct |
26 |
Correct |
116 ms |
292 KB |
Output is correct |
27 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
28 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
304 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
308 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
304 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
4 ms |
308 KB |
Output is correct |
18 |
Correct |
2 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
119 ms |
212 KB |
Output is correct |
21 |
Correct |
125 ms |
308 KB |
Output is correct |
22 |
Correct |
129 ms |
292 KB |
Output is correct |
23 |
Correct |
124 ms |
308 KB |
Output is correct |
24 |
Correct |
116 ms |
300 KB |
Output is correct |
25 |
Correct |
124 ms |
296 KB |
Output is correct |
26 |
Correct |
116 ms |
292 KB |
Output is correct |
27 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
28 |
Halted |
0 ms |
0 KB |
- |