#include <bits/stdc++.h>
#define all(v) v.begin(), v.end()
#define sz(x) (int)x.size()
#define pb push_back
#define pii pair<int, int>
#define chmin(x, v) x = min(x, v)
#define chmax(x, v) x = max(x, v)
#define x first
#define y second
#define int long long
using namespace std;
signed main(){
int nVals; cin >> nVals;
string line; cin >> line;
vector<int> posis[26];
for (int i = 0; i < nVals; ++i)
posis[line[i] - 'a'].pb(i);
int maxi = 0;
int pt = 0;
for (int i = 0; i < nVals;){
pt = i;
while (pt < nVals && line[pt] == line[i])
++pt;
chmax(maxi, pt - i);
i = pt;
}
for (int iMin = 0; iMin < 26; ++iMin)
for (int iMax = 0; iMax < 6; ++iMax){
if (posis[iMin].empty() || posis[iMax].empty()) continue;
vector<pii> vals;
for (int posi : posis[iMin])
vals.pb({posi, -1});
for (int posi : posis[iMax])
vals.pb({posi, 1});
sort(all(vals));
vector<pii> tmp;
tmp.pb(vals[0]);
for (int i = 1; i < sz(vals); ++i){
if (vals[i].y == vals[i - 1].y)
tmp[sz(tmp) - 1].y += vals[i].y;
else
tmp.pb(vals[i]);
}
vals = tmp;
int pMin = 0, pMax = 0, p[sz(vals)];
int id = 0, pCur = 0;
for (pii val : vals){
pCur += val.second;
p[id] = pCur;
if (id != 0){
chmax(maxi, abs(pCur - pMin));
chmax(maxi, abs(pMax - pCur));
chmin(pMin, p[id - 1]);
chmax(pMax, p[id - 1]);
}
id++;
}
}
cout << maxi << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
292 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
332 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
7 ms |
460 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
88 ms |
1740 KB |
Output is correct |
2 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1084 ms |
17608 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1016 ms |
17580 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1037 ms |
17156 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1018 ms |
17600 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |