oj.uz

Submission #971448

# Submission time Handle Problem Language Result Execution time Memory
971448 2024-04-28T14:11:28 Z Acanikolic Crossing (JOI21_crossing) C++14
100 / 100
 309 ms 37832 KB 
#include <bits/stdc++.h>

#define int long long

using namespace std;

const int N = 200000 + 10;

const int P = 31;

const int mod = 1e9 + 7;

string resi(string a,string b) {
    string res;
    for(int i = 0; i < a.size(); i++) res += 'J';
    for(int i = 1; i < a.size(); i++) {
        if(a[i] == b[i]) res[i] = a[i];
        else {
            bool J = false,O = false,I = false;
            if(a[i] == 'J' || b[i] == 'J') J = true;
            if(a[i] == 'O' || b[i] == 'O') O = true;
            if(a[i] == 'I' || b[i] == 'I') I = true;
            if(!J) res[i] = 'J';
            else if(!O) res[i] = 'O';
            else res[i] = 'I';
        }
    }
    return res;
}

int add(int a,int b) {
    a += b;
    if(a < 0) a += mod;
    if(a >= mod) a -= mod;
    return a;
}

int mul(int a,int b) {
    return (a * b) % mod;
}

int pw[N];

struct hes {
    // h[i] = h[i - 1] + (pw[i] * s[i] - 'a' + 1)
    // pw[i] * c + pw[i + 1] * c + pw[i + 2] * c =  c(pw[i] + pw[i + 1],pw[i + 2]...)
    string s;
    vector<int>val;
    void build(string t,int n) {
        s = t;
        val.resize(n + 1);
        for(int i = 1; i <= n; i++) val[i] = add(val[i - 1],mul(pw[i],(s[i] - 'A' + 1)));
    }
};

int st[N * 4],pref[N];
bool lazy[N * 4];
char koji[N * 4];

void push(int node,int tl,int tr) {
    if(!lazy[node]) return;
    st[node] = mul(koji[node] - 'A' + 1,add(pref[tr],-pref[tl - 1]));
    if(tl != tr) {
        lazy[node * 2] = true;
        lazy[node * 2 + 1] = true;
        koji[node * 2] = koji[node];
        koji[node * 2 + 1] = koji[node];
    }
    lazy[node] = false;
}

void modify(int node,int tl,int tr,int l,int r,char c) {
    push(node,tl,tr);
    if(tl > r || tr < l) return;
    if(tl >= l && tr <= r) {
        lazy[node] = true;
        koji[node] = c;
        push(node,tl,tr);
        return;
    }
    int mid = (tl + tr) / 2;
    modify(node * 2,tl,mid,l,r,c);
    modify(node * 2 + 1,mid + 1,tr,l,r,c);
    st[node] = add(st[node * 2],st[node * 2 + 1]);
}

int get(int node,int tl,int tr,int l,int r) {
    if(tl > r || tr < l) return 0;
    if(tl >= l && tr <= r) return st[node];
    int mid = (tl + tr) / 2;
    return add(get(node * 2,tl,mid,l,r),get(node * 2 + 1,mid + 1,tr,l,r));
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    int n;
    cin >> n;
    pw[0] = 1;
    for(int i = 1; i <= n; i++) pw[i] = mul(pw[i - 1],P);
    for(int i = 1; i <= n; i++) pref[i] = add(pref[i - 1],pw[i]);
    set<string>st;
    string a,b,c;
    cin >> a >> b >> c;
    a = '.' + a;
    b = '.' + b;
    c = '.' + c;
    st.insert(a);
    st.insert(b);
    st.insert(c);
    st.insert(resi(a,c));
    st.insert(resi(b,c));
    st.insert(resi(a,b));
    st.insert(resi(resi(a,b),c));
    st.insert(resi(resi(b,a),c));
    st.insert(resi(resi(c,a),b));
    st.insert(resi(resi(a,c),b));
    st.insert(resi(resi(b,c),a));
    st.insert(resi(resi(c,b),a));
    vector<string>vec;
    for(auto X : st) vec.push_back(X);
    int K = vec.size();
    vector<hes>niz(K);
    for(int i = 0; i < K; i++) {
        niz[i].build(vec[i],n);
    }
    int Q;
    cin >> Q;
    string str;
    cin >> str;
    str = '.' + str;
    hes T;
    T.build(str,n);
    for(int i = 1; i <= n; i++) modify(1,1,n,i,i,str[i]);
    bool ok = false;
    for(int i = 0; i < K; i++) {
        if(niz[i].val[n] == get(1,1,n,1,n)) ok = true;
    }
    cout << (ok ? "Yes\n" : "No\n");
    while(Q--) {
        int l,r;
        char c;
        cin >> l >> r >> c;
        modify(1,1,n,l,r,c);
        bool ok = false;
        for(int i = 0; i < K; i++) {
            if(niz[i].val[n] == get(1,1,n,1,n)) ok = true;
        }
        cout << (ok ? "Yes\n" : "No\n");
    }
}
/*
JOJO
JJOI
OJOO

a ^ b
a ^ c
b ^ c

a ^ a ^ b = b
a ^ a ^ c = c
a ^ b ^ c novo

b ^ a ^ b = a
b ^ a ^ c =
*/

Compilation message

Main.cpp: In function 'std::string resi(std::string, std::string)':
Main.cpp:15:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for(int i = 0; i < a.size(); i++) res += 'J';
      |                    ~~^~~~~~~~~~
Main.cpp:16:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for(int i = 1; i < a.size(); i++) {
      |                    ~~^~~~~~~~~~
Main.cpp:19:38: warning: variable 'I' set but not used [-Wunused-but-set-variable]
   19 |             bool J = false,O = false,I = false;
      |                                      ^

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 6476 KB Output is correct
2 Correct 60 ms 6484 KB Output is correct
3 Correct 56 ms 6488 KB Output is correct
4 Correct 50 ms 6484 KB Output is correct
5 Correct 46 ms 6480 KB Output is correct
6 Correct 47 ms 6484 KB Output is correct
7 Correct 62 ms 6628 KB Output is correct
8 Correct 50 ms 6576 KB Output is correct
9 Correct 52 ms 6480 KB Output is correct
10 Correct 54 ms 6484 KB Output is correct
11 Correct 52 ms 6480 KB Output is correct
12 Correct 51 ms 6632 KB Output is correct
13 Correct 67 ms 6484 KB Output is correct
14 Correct 51 ms 6672 KB Output is correct
15 Correct 52 ms 6592 KB Output is correct
16 Correct 54 ms 6488 KB Output is correct
17 Correct 52 ms 6484 KB Output is correct
18 Correct 65 ms 6464 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 6476 KB Output is correct
2 Correct 60 ms 6484 KB Output is correct
3 Correct 56 ms 6488 KB Output is correct
4 Correct 50 ms 6484 KB Output is correct
5 Correct 46 ms 6480 KB Output is correct
6 Correct 47 ms 6484 KB Output is correct
7 Correct 62 ms 6628 KB Output is correct
8 Correct 50 ms 6576 KB Output is correct
9 Correct 52 ms 6480 KB Output is correct
10 Correct 54 ms 6484 KB Output is correct
11 Correct 52 ms 6480 KB Output is correct
12 Correct 51 ms 6632 KB Output is correct
13 Correct 67 ms 6484 KB Output is correct
14 Correct 51 ms 6672 KB Output is correct
15 Correct 52 ms 6592 KB Output is correct
16 Correct 54 ms 6488 KB Output is correct
17 Correct 52 ms 6484 KB Output is correct
18 Correct 65 ms 6464 KB Output is correct
19 Correct 240 ms 22080 KB Output is correct
20 Correct 223 ms 21988 KB Output is correct
21 Correct 142 ms 21520 KB Output is correct
22 Correct 143 ms 20544 KB Output is correct
23 Correct 80 ms 8020 KB Output is correct
24 Correct 83 ms 7940 KB Output is correct
25 Correct 153 ms 22240 KB Output is correct
26 Correct 155 ms 22120 KB Output is correct
27 Correct 176 ms 22076 KB Output is correct
28 Correct 179 ms 22260 KB Output is correct
29 Correct 172 ms 21844 KB Output is correct
30 Correct 90 ms 7800 KB Output is correct
31 Correct 180 ms 22356 KB Output is correct
32 Correct 163 ms 21328 KB Output is correct
33 Correct 84 ms 7836 KB Output is correct
34 Correct 181 ms 22552 KB Output is correct
35 Correct 128 ms 19592 KB Output is correct
36 Correct 81 ms 8020 KB Output is correct
37 Correct 81 ms 7968 KB Output is correct
38 Correct 207 ms 22104 KB Output is correct
39 Correct 122 ms 21840 KB Output is correct
40 Correct 158 ms 16292 KB Output is correct
41 Correct 261 ms 22784 KB Output is correct
42 Correct 80 ms 21296 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 6476 KB Output is correct
2 Correct 60 ms 6484 KB Output is correct
3 Correct 56 ms 6488 KB Output is correct
4 Correct 50 ms 6484 KB Output is correct
5 Correct 46 ms 6480 KB Output is correct
6 Correct 47 ms 6484 KB Output is correct
7 Correct 62 ms 6628 KB Output is correct
8 Correct 50 ms 6576 KB Output is correct
9 Correct 52 ms 6480 KB Output is correct
10 Correct 54 ms 6484 KB Output is correct
11 Correct 52 ms 6480 KB Output is correct
12 Correct 51 ms 6632 KB Output is correct
13 Correct 67 ms 6484 KB Output is correct
14 Correct 51 ms 6672 KB Output is correct
15 Correct 52 ms 6592 KB Output is correct
16 Correct 54 ms 6488 KB Output is correct
17 Correct 52 ms 6484 KB Output is correct
18 Correct 65 ms 6464 KB Output is correct
19 Correct 60 ms 6476 KB Output is correct
20 Correct 57 ms 6480 KB Output is correct
21 Correct 52 ms 6600 KB Output is correct
22 Correct 45 ms 6484 KB Output is correct
23 Correct 54 ms 6480 KB Output is correct
24 Correct 50 ms 6480 KB Output is correct
25 Correct 52 ms 6672 KB Output is correct
26 Correct 48 ms 6552 KB Output is correct
27 Correct 53 ms 6496 KB Output is correct
28 Correct 48 ms 6484 KB Output is correct
29 Correct 58 ms 6480 KB Output is correct
30 Correct 53 ms 6444 KB Output is correct
31 Correct 56 ms 6484 KB Output is correct
32 Correct 52 ms 6484 KB Output is correct
33 Correct 56 ms 6544 KB Output is correct
34 Correct 49 ms 6736 KB Output is correct
35 Correct 62 ms 6888 KB Output is correct
36 Correct 56 ms 6536 KB Output is correct
37 Correct 58 ms 6584 KB Output is correct
38 Correct 57 ms 6616 KB Output is correct
39 Correct 55 ms 6660 KB Output is correct
40 Correct 56 ms 6488 KB Output is correct
41 Correct 55 ms 6496 KB Output is correct
42 Correct 57 ms 6480 KB Output is correct
43 Correct 75 ms 6636 KB Output is correct
44 Correct 68 ms 6480 KB Output is correct

Subtask #4
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 6476 KB Output is correct
2 Correct 60 ms 6484 KB Output is correct
3 Correct 56 ms 6488 KB Output is correct
4 Correct 50 ms 6484 KB Output is correct
5 Correct 46 ms 6480 KB Output is correct
6 Correct 47 ms 6484 KB Output is correct
7 Correct 62 ms 6628 KB Output is correct
8 Correct 50 ms 6576 KB Output is correct
9 Correct 52 ms 6480 KB Output is correct
10 Correct 54 ms 6484 KB Output is correct
11 Correct 52 ms 6480 KB Output is correct
12 Correct 51 ms 6632 KB Output is correct
13 Correct 67 ms 6484 KB Output is correct
14 Correct 51 ms 6672 KB Output is correct
15 Correct 52 ms 6592 KB Output is correct
16 Correct 54 ms 6488 KB Output is correct
17 Correct 52 ms 6484 KB Output is correct
18 Correct 65 ms 6464 KB Output is correct
19 Correct 240 ms 22080 KB Output is correct
20 Correct 223 ms 21988 KB Output is correct
21 Correct 142 ms 21520 KB Output is correct
22 Correct 143 ms 20544 KB Output is correct
23 Correct 80 ms 8020 KB Output is correct
24 Correct 83 ms 7940 KB Output is correct
25 Correct 153 ms 22240 KB Output is correct
26 Correct 155 ms 22120 KB Output is correct
27 Correct 176 ms 22076 KB Output is correct
28 Correct 179 ms 22260 KB Output is correct
29 Correct 172 ms 21844 KB Output is correct
30 Correct 90 ms 7800 KB Output is correct
31 Correct 180 ms 22356 KB Output is correct
32 Correct 163 ms 21328 KB Output is correct
33 Correct 84 ms 7836 KB Output is correct
34 Correct 181 ms 22552 KB Output is correct
35 Correct 128 ms 19592 KB Output is correct
36 Correct 81 ms 8020 KB Output is correct
37 Correct 81 ms 7968 KB Output is correct
38 Correct 207 ms 22104 KB Output is correct
39 Correct 122 ms 21840 KB Output is correct
40 Correct 158 ms 16292 KB Output is correct
41 Correct 261 ms 22784 KB Output is correct
42 Correct 80 ms 21296 KB Output is correct
43 Correct 60 ms 6476 KB Output is correct
44 Correct 57 ms 6480 KB Output is correct
45 Correct 52 ms 6600 KB Output is correct
46 Correct 45 ms 6484 KB Output is correct
47 Correct 54 ms 6480 KB Output is correct
48 Correct 50 ms 6480 KB Output is correct
49 Correct 52 ms 6672 KB Output is correct
50 Correct 48 ms 6552 KB Output is correct
51 Correct 53 ms 6496 KB Output is correct
52 Correct 48 ms 6484 KB Output is correct
53 Correct 58 ms 6480 KB Output is correct
54 Correct 53 ms 6444 KB Output is correct
55 Correct 56 ms 6484 KB Output is correct
56 Correct 52 ms 6484 KB Output is correct
57 Correct 56 ms 6544 KB Output is correct
58 Correct 49 ms 6736 KB Output is correct
59 Correct 62 ms 6888 KB Output is correct
60 Correct 56 ms 6536 KB Output is correct
61 Correct 58 ms 6584 KB Output is correct
62 Correct 57 ms 6616 KB Output is correct
63 Correct 55 ms 6660 KB Output is correct
64 Correct 56 ms 6488 KB Output is correct
65 Correct 55 ms 6496 KB Output is correct
66 Correct 57 ms 6480 KB Output is correct
67 Correct 75 ms 6636 KB Output is correct
68 Correct 68 ms 6480 KB Output is correct
69 Correct 232 ms 33052 KB Output is correct
70 Correct 274 ms 37464 KB Output is correct
71 Correct 89 ms 8184 KB Output is correct
72 Correct 90 ms 8372 KB Output is correct
73 Correct 84 ms 8312 KB Output is correct
74 Correct 168 ms 27728 KB Output is correct
75 Correct 85 ms 8272 KB Output is correct
76 Correct 171 ms 30952 KB Output is correct
77 Correct 193 ms 27848 KB Output is correct
78 Correct 86 ms 8424 KB Output is correct
79 Correct 87 ms 8488 KB Output is correct
80 Correct 161 ms 30164 KB Output is correct
81 Correct 86 ms 8788 KB Output is correct
82 Correct 203 ms 37604 KB Output is correct
83 Correct 186 ms 36068 KB Output is correct
84 Correct 118 ms 8788 KB Output is correct
85 Correct 103 ms 8788 KB Output is correct
86 Correct 192 ms 31312 KB Output is correct
87 Correct 217 ms 37412 KB Output is correct
88 Correct 104 ms 8652 KB Output is correct
89 Correct 194 ms 34216 KB Output is correct
90 Correct 228 ms 37632 KB Output is correct
91 Correct 99 ms 8788 KB Output is correct
92 Correct 166 ms 31052 KB Output is correct
93 Correct 137 ms 8756 KB Output is correct
94 Correct 97 ms 8912 KB Output is correct
95 Correct 87 ms 8788 KB Output is correct
96 Correct 218 ms 21684 KB Output is correct
97 Correct 157 ms 37348 KB Output is correct
98 Correct 163 ms 26464 KB Output is correct
99 Correct 309 ms 37832 KB Output is correct
100 Correct 120 ms 36812 KB Output is correct