#include <bits/stdc++.h>
#include "hiccup.h"
//~ #include "grader.cpp"
using namespace std;
const int N = 1000001;
int n;
string s;
vector <int> h;
set <int> v[N], g[N];
bool valid(){
int o = 0;
for(auto &i : s){
o += i == 'H';
o -= i == 'C';
if(o < 0) return 0;
}
if(o) return 0;
for(auto &i : s){
if(i == 'H') o = 0;
else if(i == 'C') o = 1;
else if(o == 0) return 0;
}
return 1;
}
bool check(int x){
for(int i = 0 ; ; i++){
if((int)v[i].size() == 0) break;
g[i] = v[i];
}
for(int i = n - 1 ; i >= 0 ; i--){
if(s[i] == 'C'){
for(int j = 0 ; j < x ; j++){
auto it = g[h[i]].upper_bound(i);
if(it == g[h[i]].end()) return 0;
g[h[i]].erase(it);
}
}
}
return 1;
}
int HicCup(std::string S) {
s = S;
n = s.size();
if(!valid() || s == string(n, '!')) return -1;
h.resize(n);
h[0] = 1;
for(int i = 1 ; i < n ; i++){
h[i] = h[i - 1];
if(s[i] == 'H') h[i]++;
else if(s[i] == 'C') h[i]--;
else v[h[i]].insert(i);
}
int l = 0, r = n;
while(l <= r){
int mid = (l + r) / 2;
if(check(mid)) l = mid + 1;
else r = mid - 1;
}
return l - 1;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
57 ms |
94328 KB |
Output is correct |
2 |
Correct |
55 ms |
94208 KB |
Output is correct |
3 |
Correct |
58 ms |
94328 KB |
Output is correct |
4 |
Correct |
62 ms |
94592 KB |
Output is correct |
5 |
Correct |
91 ms |
102188 KB |
Output is correct |
6 |
Correct |
67 ms |
98168 KB |
Output is correct |
7 |
Correct |
73 ms |
98296 KB |
Output is correct |
8 |
Correct |
94 ms |
102180 KB |
Output is correct |
9 |
Correct |
97 ms |
102180 KB |
Output is correct |
10 |
Correct |
66 ms |
98168 KB |
Output is correct |
11 |
Correct |
60 ms |
94328 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
57 ms |
94328 KB |
Output is correct |
2 |
Correct |
55 ms |
94208 KB |
Output is correct |
3 |
Correct |
58 ms |
94328 KB |
Output is correct |
4 |
Correct |
62 ms |
94592 KB |
Output is correct |
5 |
Correct |
91 ms |
102188 KB |
Output is correct |
6 |
Correct |
67 ms |
98168 KB |
Output is correct |
7 |
Correct |
73 ms |
98296 KB |
Output is correct |
8 |
Correct |
94 ms |
102180 KB |
Output is correct |
9 |
Correct |
97 ms |
102180 KB |
Output is correct |
10 |
Correct |
66 ms |
98168 KB |
Output is correct |
11 |
Correct |
63 ms |
98296 KB |
Output is correct |
12 |
Correct |
61 ms |
98304 KB |
Output is correct |
13 |
Correct |
67 ms |
98168 KB |
Output is correct |
14 |
Correct |
69 ms |
94332 KB |
Output is correct |
15 |
Correct |
74 ms |
98168 KB |
Output is correct |
16 |
Correct |
67 ms |
94328 KB |
Output is correct |
17 |
Correct |
58 ms |
94336 KB |
Output is correct |
18 |
Correct |
65 ms |
94588 KB |
Output is correct |
19 |
Execution timed out |
1110 ms |
195492 KB |
Time limit exceeded |
20 |
Halted |
0 ms |
0 KB |
- |