oj.uz

Submission #217443

# Submission time Handle Problem Language Result Execution time Memory
217443 2020-03-29T17:08:34 Z dimash241 Treasure (info1cup19_treasure) C++17
35 / 100
 17 ms 1152 KB 
//#pragma GCC target("avx2")
//#pragma GCC optimize("O3")

//# include <x86intrin.h>
# include <bits/stdc++.h>

//# include <ext/pb_ds/assoc_container.hpp>
//# include <ext/pb_ds/tree_policy.hpp>

//using namespace __gnu_pbds;
using namespace std;
 
//template<typename T> using ordered_set = tree <T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

#define _USE_MATH_DEFINES_
#define ll long long
#define ld long double
#define Accepted 0
#define pb push_back
#define mp make_pair
#define sz(x) (int)(x.size())
#define every(x) x.begin(),x.end()
#define F first
#define S second
#define lb lower_bound
#define ub upper_bound
#define For(i,x,y)  for (ll i = x; i <= y; i ++) 
#define FOr(i,x,y)  for (ll i = x; i >= y; i --)
#define SpeedForce ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
// ROAD to...                                                                                                                                                                                                                Red

inline void Input_Output () {
	//freopen(".in", "r", stdin);
   //freopen(".out", "w", stdout);
}

const double eps = 0.000001;
const ld pi = acos(-1);
const int maxn = 1e7 + 9;
const int mod = 1e9 + 7;
const ll MOD = 1e18 + 9;
const ll INF = 1e18 + 123;
const int inf = 2e9 + 11;
const int mxn = 1e6 + 9;
const int N = 6e5 + 123;                                          
const int M = 22;
const int pri = 997;
const int Magic = 2101;

const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, -1, 0, 1};
 
int n, m, k;
string s;
vector < int > g[44];


int main () {	
	SpeedForce;
	cin >> n >> k >> s;

	for (int i = 0; i < n; ++i) {
	//	cin >> s[i];
		s[i] -= 'a';
		g[s[i]].pb(i);
	}

	vector < int > alive;
	for (int i = 0; i < n; ++i) {
		alive.pb(i);
		if(alive.size() >= k) {
			int cnt = ub(every(g[s[i]]), i) - lb(every(g[s[i]]), alive[sz(alive)-k]);
			if (cnt == k) {
				while(cnt--) {
					alive.pop_back();
				}
			}
		}
	}

	for (auto it : alive)
		cout << char(s[(it)] + 'a');


	return Accepted;
}

// B...a

Compilation message

treasure.cpp: In function 'int main()':
treasure.cpp:65:9: warning: array subscript has type 'char' [-Wchar-subscripts]
   g[s[i]].pb(i);
         ^
treasure.cpp:71:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(alive.size() >= k) {
      ~~~~~~~~~~~~~^~~~
treasure.cpp:72:29: warning: array subscript has type 'char' [-Wchar-subscripts]
    int cnt = ub(every(g[s[i]]), i) - lb(every(g[s[i]]), alive[sz(alive)-k]);
                             ^
treasure.cpp:22:18: note: in definition of macro 'every'
 #define every(x) x.begin(),x.end()
                  ^
treasure.cpp:72:29: warning: array subscript has type 'char' [-Wchar-subscripts]
    int cnt = ub(every(g[s[i]]), i) - lb(every(g[s[i]]), alive[sz(alive)-k]);
                             ^
treasure.cpp:22:28: note: in definition of macro 'every'
 #define every(x) x.begin(),x.end()
                            ^
treasure.cpp:72:53: warning: array subscript has type 'char' [-Wchar-subscripts]
    int cnt = ub(every(g[s[i]]), i) - lb(every(g[s[i]]), alive[sz(alive)-k]);
                                                     ^
treasure.cpp:22:18: note: in definition of macro 'every'
 #define every(x) x.begin(),x.end()
                  ^
treasure.cpp:72:53: warning: array subscript has type 'char' [-Wchar-subscripts]
    int cnt = ub(every(g[s[i]]), i) - lb(every(g[s[i]]), alive[sz(alive)-k]);
                                                     ^
treasure.cpp:22:28: note: in definition of macro 'every'
 #define every(x) x.begin(),x.end()
                            ^

Subtask #1
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct

Subtask #2
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 7 ms 512 KB Output is correct
17 Correct 9 ms 640 KB Output is correct
18 Correct 9 ms 640 KB Output is correct
19 Correct 12 ms 896 KB Output is correct
20 Correct 10 ms 768 KB Output is correct
21 Correct 14 ms 1024 KB Output is correct
22 Incorrect 17 ms 1152 KB Output isn't correct
23 Halted 0 ms 0 KB -