oj.uz

답안 #956473

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
956473 2024-04-02T04:36:24 Z steveonalex JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
 18 ms 43240 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define MASK(i) (1ULL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
 
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
 
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ull mask){return __builtin_ctzll(mask);}
int logOf(ull mask){return 63 - __builtin_clzll(mask);}
 
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
 
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }
 
template <class T>
    void printArr(T& container, string separator = " ", string finish = "\n", ostream &out = cout){
        for(auto item: container) out << item << separator;
        out << finish;
    }
 
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }

const int N = 2e5 + 69, LOG_N = 18;
const int INF = 1e9 + 69;
int nxt[3][LOG_N][N];

int lift(int j, int i, int d){
    for(int t = 0; t < LOG_N; ++t) if (GETBIT(d, t)) 
        i = nxt[j][t][i];
    return i;
}

int main(void){
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int n, k; cin >> n >> k;
    string s; cin >> s;
    for(int j = 0; j<3; ++j) nxt[j][0][n] = n;
    for(int i = n-1; i>=0; --i){
        for(int j = 0; j < 3; ++j) nxt[j][0][i] = nxt[j][0][i+1];
        if (i < n - 1){
            if (s[i + 1] == 'J') nxt[0][0][i] = i + 1;
            else if (s[i+1] == 'O') nxt[1][0][i] = i + 1;
            else nxt[2][0][i] = i + 1;
        }
    }


    for(int j = 0; j < 3; ++j){
        for(int t = 1; t < LOG_N; ++ t){
            for(int i = 0; i<=n; ++i) 
                nxt[j][t][i] = nxt[j][t-1][nxt[j][t-1][i]];
        }
    }

    int ans = INF;
    for(int i = 0; i<n; ++i) if (s[i] == 'J'){
        int j = i;
        j = lift(0, j, k-1);
        j = lift(1, j, k);
        j = lift(2, j, k);
        if (j == n) break;
        minimize(ans, j - i + 1 - 3 * k);
    }
    if (ans == INF) cout << -1 << "\n";
    else cout << ans << "\n";

    return 0;
}

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 41304 KB Output is correct
2 Correct 5 ms 41308 KB Output is correct
3 Correct 5 ms 41308 KB Output is correct
4 Correct 5 ms 41308 KB Output is correct
5 Correct 5 ms 41308 KB Output is correct
6 Correct 5 ms 41308 KB Output is correct
7 Correct 5 ms 41308 KB Output is correct
8 Correct 5 ms 41308 KB Output is correct
9 Correct 5 ms 41312 KB Output is correct
10 Correct 4 ms 41308 KB Output is correct
11 Correct 5 ms 41504 KB Output is correct
12 Correct 5 ms 41304 KB Output is correct
13 Correct 5 ms 41476 KB Output is correct
14 Correct 5 ms 41308 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 41304 KB Output is correct
2 Correct 5 ms 41308 KB Output is correct
3 Correct 5 ms 41308 KB Output is correct
4 Correct 5 ms 41308 KB Output is correct
5 Correct 5 ms 41308 KB Output is correct
6 Correct 5 ms 41308 KB Output is correct
7 Correct 5 ms 41308 KB Output is correct
8 Correct 5 ms 41308 KB Output is correct
9 Correct 5 ms 41312 KB Output is correct
10 Correct 4 ms 41308 KB Output is correct
11 Correct 5 ms 41504 KB Output is correct
12 Correct 5 ms 41304 KB Output is correct
13 Correct 5 ms 41476 KB Output is correct
14 Correct 5 ms 41308 KB Output is correct
15 Correct 6 ms 41312 KB Output is correct
16 Correct 5 ms 41472 KB Output is correct
17 Correct 5 ms 41308 KB Output is correct
18 Correct 5 ms 41508 KB Output is correct
19 Correct 5 ms 41312 KB Output is correct
20 Correct 5 ms 41420 KB Output is correct
21 Correct 5 ms 41304 KB Output is correct
22 Correct 5 ms 41308 KB Output is correct
23 Correct 5 ms 41308 KB Output is correct
24 Correct 5 ms 41308 KB Output is correct
25 Correct 5 ms 41456 KB Output is correct
26 Correct 5 ms 41308 KB Output is correct
27 Correct 5 ms 41308 KB Output is correct
28 Correct 5 ms 41308 KB Output is correct
29 Correct 5 ms 41304 KB Output is correct
30 Correct 5 ms 41308 KB Output is correct
31 Correct 5 ms 41312 KB Output is correct
32 Correct 5 ms 41452 KB Output is correct
33 Correct 5 ms 41312 KB Output is correct
34 Correct 5 ms 41312 KB Output is correct
35 Correct 5 ms 41564 KB Output is correct

Subtask #3
87.0 / 87.0

# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 41304 KB Output is correct
2 Correct 5 ms 41308 KB Output is correct
3 Correct 5 ms 41308 KB Output is correct
4 Correct 5 ms 41308 KB Output is correct
5 Correct 5 ms 41308 KB Output is correct
6 Correct 5 ms 41308 KB Output is correct
7 Correct 5 ms 41308 KB Output is correct
8 Correct 5 ms 41308 KB Output is correct
9 Correct 5 ms 41312 KB Output is correct
10 Correct 4 ms 41308 KB Output is correct
11 Correct 5 ms 41504 KB Output is correct
12 Correct 5 ms 41304 KB Output is correct
13 Correct 5 ms 41476 KB Output is correct
14 Correct 5 ms 41308 KB Output is correct
15 Correct 6 ms 41312 KB Output is correct
16 Correct 5 ms 41472 KB Output is correct
17 Correct 5 ms 41308 KB Output is correct
18 Correct 5 ms 41508 KB Output is correct
19 Correct 5 ms 41312 KB Output is correct
20 Correct 5 ms 41420 KB Output is correct
21 Correct 5 ms 41304 KB Output is correct
22 Correct 5 ms 41308 KB Output is correct
23 Correct 5 ms 41308 KB Output is correct
24 Correct 5 ms 41308 KB Output is correct
25 Correct 5 ms 41456 KB Output is correct
26 Correct 5 ms 41308 KB Output is correct
27 Correct 5 ms 41308 KB Output is correct
28 Correct 5 ms 41308 KB Output is correct
29 Correct 5 ms 41304 KB Output is correct
30 Correct 5 ms 41308 KB Output is correct
31 Correct 5 ms 41312 KB Output is correct
32 Correct 5 ms 41452 KB Output is correct
33 Correct 5 ms 41312 KB Output is correct
34 Correct 5 ms 41312 KB Output is correct
35 Correct 5 ms 41564 KB Output is correct
36 Correct 16 ms 43180 KB Output is correct
37 Correct 17 ms 43240 KB Output is correct
38 Correct 17 ms 43212 KB Output is correct
39 Correct 17 ms 43024 KB Output is correct
40 Correct 15 ms 43112 KB Output is correct
41 Correct 16 ms 43240 KB Output is correct
42 Correct 18 ms 43240 KB Output is correct
43 Correct 10 ms 42332 KB Output is correct
44 Correct 13 ms 42728 KB Output is correct
45 Correct 13 ms 43120 KB Output is correct
46 Correct 15 ms 43236 KB Output is correct
47 Correct 14 ms 43012 KB Output is correct
48 Correct 15 ms 43240 KB Output is correct
49 Correct 11 ms 42544 KB Output is correct
50 Correct 13 ms 43240 KB Output is correct
51 Correct 13 ms 43184 KB Output is correct
52 Correct 13 ms 42984 KB Output is correct
53 Correct 13 ms 43240 KB Output is correct
54 Correct 15 ms 43224 KB Output is correct
55 Correct 14 ms 43240 KB Output is correct
56 Correct 12 ms 43236 KB Output is correct