oj.uz

Submission #1035099

# Submission time Handle Problem Language Result Execution time Memory
1035099 2024-07-26T04:20:06 Z CommandMaster Crossing (JOI21_crossing) C++17
26 / 100
 219 ms 19512 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define vll vector<ll>

inline int ser(char c) {
    return c == 'J' ? 1 : c == 'O' ? 2 : 3;
}

const ll maxN = 2e5+5;
const ll MOD = 1e9+7;
const ll P = 5;
const ll invP1 = 250000002;

ll powP[maxN];

ll get_hash(string s) {
    ll hash = 0;
    for (int i = 0; i < s.size(); i++) {
        hash += powP[i] * ser(s[i]);
        hash %= MOD;
    }
    return hash;
}

inline ll cohash(ll val, int sz) {
    return val * (powP[sz] - 1) * invP1 % MOD;
}

struct SEG {
    vll toset;
    vll hash;

    void make(ll n) {
        toset.resize(n*4);
        hash.resize(n*4);
    }

    void push(ll v, ll tl, ll tm, ll tr) {
        if (toset[v]) {
            toset[v*2] = toset[v];
            hash[v*2] = cohash(toset[v], tm-tl+1);
            toset[v*2+1] = toset[v];
            hash[v*2+1] = cohash(toset[v], tr-tm);
            toset[v] = 0;
        }
    }

    void pull(ll v, ll tl, ll tm, ll tr) {
        hash[v] = (hash[v*2] + powP[tm - tl + 1] * hash[v*2+1]) % MOD;
    }

    void set(ll v, ll tl, ll tr, ll l, ll r, ll val) {
        if (l > r) return;
        if (tl == l && tr == r) {
            toset[v] = val;
            hash[v] = cohash(val, tr-tl+1);
            return;
        }
        ll tm = (tl + tr) / 2;
        push(v, tl, tm, tr);
        set(v*2, tl, tm, l, min(r, tm), val);
        set(v*2+1, tm+1, tr, max(l, tm+1), r, val);
        pull(v, tl, tm, tr);
    }

    void get(ll v, ll tl, ll tr, ll ind) {
        if (tl == tr) {
            cout << ind << ": " << hash[v] << '\n';
            return;
        }
        ll tm = (tl + tr) / 2;
        push(v, tl, tm, tr);
        if (ind <= tm) get(v*2, tl, tm, ind);
        else get(v*2+1, tm+1, tr, ind);
    }
};

int main() {
    ios_base::sync_with_stdio(false), cin.tie(0);
    ll n;
    cin >> n;
    powP[0] = 1;
    for (int i = 1; i <= n; i++) powP[i] = powP[i-1] * P % MOD;
    string s1, s2, s3;
    cin >> s1 >> s2 >> s3;
    ll h = get_hash(s1);
    // cout << "hash: " << h << endl;
    ll q;
    cin >> q;
    SEG seg;
    seg.make(n);
    for (ll i =0 ; i < n; i++) {
        char c;
        cin >> c;
        seg.set(1, 0, n-1, i, i, ser(c));
    }
    // for (int i = 0; i < n; i++) seg.get(1, 0, n-1, i);
    if (seg.hash[1] == h) cout << "Yes\n";
    else cout << "No\n";
    while (q--) {
        ll l, r;
        char c;
        cin >> l >> r >> c;
        l--, r--;
        seg.set(1, 0, n-1, l, r, ser(c));
        // for (int i = 0; i < n; i++) seg.get(1, 0, n-1, i);
        if (seg.hash[1] == h) cout << "Yes\n";
        else cout << "No\n";
    }
}

Compilation message

Main.cpp: In function 'long long int get_hash(std::string)':
Main.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (int i = 0; i < s.size(); i++) {
      |                     ~~^~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 2384 KB Output is correct
2 Correct 73 ms 2384 KB Output is correct
3 Correct 54 ms 2384 KB Output is correct
4 Correct 56 ms 2388 KB Output is correct
5 Correct 39 ms 2384 KB Output is correct
6 Correct 41 ms 2396 KB Output is correct
7 Correct 54 ms 2388 KB Output is correct
8 Correct 44 ms 2368 KB Output is correct
9 Correct 44 ms 2412 KB Output is correct
10 Correct 44 ms 2388 KB Output is correct
11 Correct 44 ms 2392 KB Output is correct
12 Correct 49 ms 2388 KB Output is correct
13 Correct 60 ms 2524 KB Output is correct
14 Correct 41 ms 2392 KB Output is correct
15 Correct 44 ms 2520 KB Output is correct
16 Correct 42 ms 2360 KB Output is correct
17 Correct 43 ms 2388 KB Output is correct
18 Correct 44 ms 2504 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 2384 KB Output is correct
2 Correct 73 ms 2384 KB Output is correct
3 Correct 54 ms 2384 KB Output is correct
4 Correct 56 ms 2388 KB Output is correct
5 Correct 39 ms 2384 KB Output is correct
6 Correct 41 ms 2396 KB Output is correct
7 Correct 54 ms 2388 KB Output is correct
8 Correct 44 ms 2368 KB Output is correct
9 Correct 44 ms 2412 KB Output is correct
10 Correct 44 ms 2388 KB Output is correct
11 Correct 44 ms 2392 KB Output is correct
12 Correct 49 ms 2388 KB Output is correct
13 Correct 60 ms 2524 KB Output is correct
14 Correct 41 ms 2392 KB Output is correct
15 Correct 44 ms 2520 KB Output is correct
16 Correct 42 ms 2360 KB Output is correct
17 Correct 43 ms 2388 KB Output is correct
18 Correct 44 ms 2504 KB Output is correct
19 Correct 219 ms 19512 KB Output is correct
20 Correct 186 ms 19256 KB Output is correct
21 Correct 151 ms 18228 KB Output is correct
22 Correct 141 ms 16816 KB Output is correct
23 Correct 76 ms 4176 KB Output is correct
24 Correct 70 ms 4176 KB Output is correct
25 Correct 140 ms 19508 KB Output is correct
26 Correct 142 ms 19480 KB Output is correct
27 Correct 154 ms 19480 KB Output is correct
28 Correct 159 ms 19488 KB Output is correct
29 Correct 149 ms 18976 KB Output is correct
30 Correct 77 ms 4180 KB Output is correct
31 Correct 152 ms 19352 KB Output is correct
32 Correct 154 ms 17960 KB Output is correct
33 Correct 72 ms 3920 KB Output is correct
34 Correct 158 ms 19512 KB Output is correct
35 Correct 141 ms 15184 KB Output is correct
36 Correct 74 ms 3924 KB Output is correct
37 Correct 72 ms 4176 KB Output is correct
38 Correct 164 ms 19252 KB Output is correct
39 Correct 121 ms 19364 KB Output is correct
40 Correct 141 ms 14108 KB Output is correct
41 Correct 200 ms 19512 KB Output is correct
42 Correct 92 ms 18836 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 2384 KB Output is correct
2 Correct 73 ms 2384 KB Output is correct
3 Correct 54 ms 2384 KB Output is correct
4 Correct 56 ms 2388 KB Output is correct
5 Correct 39 ms 2384 KB Output is correct
6 Correct 41 ms 2396 KB Output is correct
7 Correct 54 ms 2388 KB Output is correct
8 Correct 44 ms 2368 KB Output is correct
9 Correct 44 ms 2412 KB Output is correct
10 Correct 44 ms 2388 KB Output is correct
11 Correct 44 ms 2392 KB Output is correct
12 Correct 49 ms 2388 KB Output is correct
13 Correct 60 ms 2524 KB Output is correct
14 Correct 41 ms 2392 KB Output is correct
15 Correct 44 ms 2520 KB Output is correct
16 Correct 42 ms 2360 KB Output is correct
17 Correct 43 ms 2388 KB Output is correct
18 Correct 44 ms 2504 KB Output is correct
19 Correct 46 ms 2400 KB Output is correct
20 Correct 48 ms 2464 KB Output is correct
21 Incorrect 46 ms 2384 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 2384 KB Output is correct
2 Correct 73 ms 2384 KB Output is correct
3 Correct 54 ms 2384 KB Output is correct
4 Correct 56 ms 2388 KB Output is correct
5 Correct 39 ms 2384 KB Output is correct
6 Correct 41 ms 2396 KB Output is correct
7 Correct 54 ms 2388 KB Output is correct
8 Correct 44 ms 2368 KB Output is correct
9 Correct 44 ms 2412 KB Output is correct
10 Correct 44 ms 2388 KB Output is correct
11 Correct 44 ms 2392 KB Output is correct
12 Correct 49 ms 2388 KB Output is correct
13 Correct 60 ms 2524 KB Output is correct
14 Correct 41 ms 2392 KB Output is correct
15 Correct 44 ms 2520 KB Output is correct
16 Correct 42 ms 2360 KB Output is correct
17 Correct 43 ms 2388 KB Output is correct
18 Correct 44 ms 2504 KB Output is correct
19 Correct 219 ms 19512 KB Output is correct
20 Correct 186 ms 19256 KB Output is correct
21 Correct 151 ms 18228 KB Output is correct
22 Correct 141 ms 16816 KB Output is correct
23 Correct 76 ms 4176 KB Output is correct
24 Correct 70 ms 4176 KB Output is correct
25 Correct 140 ms 19508 KB Output is correct
26 Correct 142 ms 19480 KB Output is correct
27 Correct 154 ms 19480 KB Output is correct
28 Correct 159 ms 19488 KB Output is correct
29 Correct 149 ms 18976 KB Output is correct
30 Correct 77 ms 4180 KB Output is correct
31 Correct 152 ms 19352 KB Output is correct
32 Correct 154 ms 17960 KB Output is correct
33 Correct 72 ms 3920 KB Output is correct
34 Correct 158 ms 19512 KB Output is correct
35 Correct 141 ms 15184 KB Output is correct
36 Correct 74 ms 3924 KB Output is correct
37 Correct 72 ms 4176 KB Output is correct
38 Correct 164 ms 19252 KB Output is correct
39 Correct 121 ms 19364 KB Output is correct
40 Correct 141 ms 14108 KB Output is correct
41 Correct 200 ms 19512 KB Output is correct
42 Correct 92 ms 18836 KB Output is correct
43 Correct 46 ms 2400 KB Output is correct
44 Correct 48 ms 2464 KB Output is correct
45 Incorrect 46 ms 2384 KB Output isn't correct
46 Halted 0 ms 0 KB -