#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define S second
#define F first
#define all(x) (x).begin(),(x).end()
#define sz size()
#define Yes cout << "YES" << endl
#define No cout << "NO" << endl
#define pb(x) push_back(x);
#define endl '\n'
#define fast ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
const int N=3e5+7;
ll INF=INT_MAX,mod=1e9+7;
int TT=1;
ll power(ll x, unsigned int y)
{
ll res = 1;
x = x; // % mod;
if (x == 0) return 0;
while (y > 0)
{
if (y & 1) res = (res*x) ; // % mod;
y = y>>1;
x = (x*x) ; // % mod;
}
return res;
}
map<char,ll> mp;
void solve()
{
ll n , k; cin >> n >> k;
vector<ll> pos[3];
mp['J'] = 0, mp['O'] = 1, mp['I'] = 2;
for(int i = 0; i < n ;i++)
{
char c; cin >> c;
pos[mp[c]].push_back(i);
}
ll l1 = k-1, l2 = k-1;
ll ans = -1;
for(int l0 = k-1; l0 < pos[0].sz; l0++)
{
if(l1>=pos[1].sz||l2>=pos[2].sz) break;
while(l1<pos[1].sz&&pos[1][l1-k+1]<=pos[0][l0]) l1++;
while(l1<pos[1].sz&&l2<pos[2].sz&&pos[2][l2-k+1]<=pos[1][l1]) l2++;
if(l1<pos[1].sz&&l2<pos[2].sz)
{
ans = max(ans,n-3*k-pos[0][l0-k+1]-(n-pos[2][l2]-1));
}
//cout << l0 << l1 << l2 << endl;
}
cout << ans << endl;
}
int main(){
//freopen("friday.in","r",stdin);
//freopen("friday.out","w",stdout);
while(TT--)
solve();
return 0;
}
Compilation message
ho_t2.cpp: In function 'void solve()':
ho_t2.cpp:43:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
43 | for(int l0 = k-1; l0 < pos[0].sz; l0++)
| ^
ho_t2.cpp:45:14: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
45 | if(l1>=pos[1].sz||l2>=pos[2].sz) break;
| ^
ho_t2.cpp:45:29: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
45 | if(l1>=pos[1].sz||l2>=pos[2].sz) break;
| ^
ho_t2.cpp:46:17: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
46 | while(l1<pos[1].sz&&pos[1][l1-k+1]<=pos[0][l0]) l1++;
| ^
ho_t2.cpp:47:17: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
47 | while(l1<pos[1].sz&&l2<pos[2].sz&&pos[2][l2-k+1]<=pos[1][l1]) l2++;
| ^
ho_t2.cpp:47:31: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
47 | while(l1<pos[1].sz&&l2<pos[2].sz&&pos[2][l2-k+1]<=pos[1][l1]) l2++;
| ^
ho_t2.cpp:48:14: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
48 | if(l1<pos[1].sz&&l2<pos[2].sz)
| ^
ho_t2.cpp:48:28: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
48 | if(l1<pos[1].sz&&l2<pos[2].sz)
| ^
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
