oj.uz

Submission #813175

# Submission time Handle Problem Language Result Execution time Memory
813175 2023-08-07T14:04:25 Z Cookie Crossing (JOI21_crossing) C++14
3 / 100
 7000 ms 4880 KB 
#include<bits/stdc++.h>
#include<fstream>
using namespace std;
ifstream fin("VNOICUP.INP");
ofstream fout("VNOICUP.OUT");
#define sz(a) (int)a.size()
#define ll long long
#define pb push_back
#define forr(i, a, b) for(int i = a; i < b; i++)
#define dorr(i, a, b) for(int i = a; i >= b; i--)
#define ld long double
#define vt vector
#include<fstream>
#define fi first
#define se second
#define pll pair<ll, ll>
#define pii pair<int, int>
const ld PI = 3.14159265359;
using u128 = __uint128_t;
//const int x[4] = {1, -1, 0, 0};
//const int y[4] = {0, 0, 1, -1};
ll mod = 1e9 + 9;
const int mxn = 2e5 + 5, mxq = 2e5 + 5, sq = 400, mxv = 2e5 + 5;
//const int base = (1 << 18);
const int inf = 1e9, neg = -69420;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll rr(ll l, ll r){
    return(uniform_int_distribution<ll>(l, r)(rng));
}

map<ll, int>mp;
int to[mxn + 1];
ll pw[mxn + 1], n, q;
string s[3], t;
string conv(string a, string b){
    string res = "";
    for(int i = 0; i < sz(a); i++){
        if(a[i] == b[i])res += a[i];
        else if(a[i] == 'J'){
            if(b[i] = 'O')res += 'I';
            else res += 'O';
        }else if(a[i] == 'O'){
            if(b[i] == 'J')res += 'I';
            else res += 'J';
        }else{
            if(b[i] == 'O')res += 'J';
            else res += 'O';
        }
    }
    return(res);
}
ll gethash(string s){
    ll ans = 0;
    for(int i = 0; i < sz(s); i++){
        ans += pw[i] * to[s[i]];
        ans %= mod;
    }
    return(ans);
}
void solve(int mask, string curr){
    mp[gethash(curr)] = 1;
    if(mask == (1 << 3) - 1){
        return;
    }
    for(int i = 0; i < 3; i++){
        if(!(mask & (1 << i))){
            solve(mask | (1 << i), conv(curr, s[i]));
        }
    }
}
signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    mod = rr(1e8, 1e9);
    pw[0] = 1;
    for(int i = 1; i <= n; i++){
        pw[i] = (pw[i - 1] * 3) % mod;
    }
    to['J'] = 0; to['O'] = 1; to['I'] = 2;
    cin >> s[0] >> s[1] >> s[2];
    vt<int>v;
    for(int i = 0; i < 3; i++){
        solve((1 << i), s[i]);
    }
    
    
    cin >> q;
    cin >> t;
    ll ht = gethash(t);
    if(mp.find(ht) != mp.end())cout << "Yes";
    else cout << "No";
    cout << "\n";
    while(q--){
        int l, r; char c; cin >> l >> r >> c; l--; r--;
        for(int i = l; i <= r; i++)t[i] = c;
        ll ht = gethash(t);
        if(mp.find(ht) != mp.end())cout << "Yes";
        else cout << "No";
        cout << "\n";
    }
    
}

Compilation message

Main.cpp: In function 'std::string conv(std::string, std::string)':
Main.cpp:40:21: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   40 |             if(b[i] = 'O')res += 'I';
Main.cpp: In function 'long long int gethash(std::string)':
Main.cpp:55:31: warning: array subscript has type 'char' [-Wchar-subscripts]
   55 |         ans += pw[i] * to[s[i]];
      |                               ^

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 868 KB Output is correct
2 Correct 120 ms 864 KB Output is correct
3 Correct 130 ms 880 KB Output is correct
4 Correct 116 ms 832 KB Output is correct
5 Correct 108 ms 860 KB Output is correct
6 Correct 111 ms 904 KB Output is correct
7 Correct 100 ms 1000 KB Output is correct
8 Correct 120 ms 848 KB Output is correct
9 Correct 119 ms 848 KB Output is correct
10 Correct 120 ms 816 KB Output is correct
11 Correct 125 ms 2428 KB Output is correct
12 Correct 122 ms 2380 KB Output is correct
13 Correct 122 ms 2396 KB Output is correct
14 Correct 121 ms 2448 KB Output is correct
15 Correct 120 ms 2452 KB Output is correct
16 Correct 120 ms 2396 KB Output is correct
17 Correct 123 ms 2456 KB Output is correct
18 Correct 132 ms 2308 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 868 KB Output is correct
2 Correct 120 ms 864 KB Output is correct
3 Correct 130 ms 880 KB Output is correct
4 Correct 116 ms 832 KB Output is correct
5 Correct 108 ms 860 KB Output is correct
6 Correct 111 ms 904 KB Output is correct
7 Correct 100 ms 1000 KB Output is correct
8 Correct 120 ms 848 KB Output is correct
9 Correct 119 ms 848 KB Output is correct
10 Correct 120 ms 816 KB Output is correct
11 Correct 125 ms 2428 KB Output is correct
12 Correct 122 ms 2380 KB Output is correct
13 Correct 122 ms 2396 KB Output is correct
14 Correct 121 ms 2448 KB Output is correct
15 Correct 120 ms 2452 KB Output is correct
16 Correct 120 ms 2396 KB Output is correct
17 Correct 123 ms 2456 KB Output is correct
18 Correct 132 ms 2308 KB Output is correct
19 Execution timed out 7017 ms 4880 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 868 KB Output is correct
2 Correct 120 ms 864 KB Output is correct
3 Correct 130 ms 880 KB Output is correct
4 Correct 116 ms 832 KB Output is correct
5 Correct 108 ms 860 KB Output is correct
6 Correct 111 ms 904 KB Output is correct
7 Correct 100 ms 1000 KB Output is correct
8 Correct 120 ms 848 KB Output is correct
9 Correct 119 ms 848 KB Output is correct
10 Correct 120 ms 816 KB Output is correct
11 Correct 125 ms 2428 KB Output is correct
12 Correct 122 ms 2380 KB Output is correct
13 Correct 122 ms 2396 KB Output is correct
14 Correct 121 ms 2448 KB Output is correct
15 Correct 120 ms 2452 KB Output is correct
16 Correct 120 ms 2396 KB Output is correct
17 Correct 123 ms 2456 KB Output is correct
18 Correct 132 ms 2308 KB Output is correct
19 Correct 121 ms 2380 KB Output is correct
20 Correct 136 ms 2344 KB Output is correct
21 Incorrect 124 ms 2420 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 868 KB Output is correct
2 Correct 120 ms 864 KB Output is correct
3 Correct 130 ms 880 KB Output is correct
4 Correct 116 ms 832 KB Output is correct
5 Correct 108 ms 860 KB Output is correct
6 Correct 111 ms 904 KB Output is correct
7 Correct 100 ms 1000 KB Output is correct
8 Correct 120 ms 848 KB Output is correct
9 Correct 119 ms 848 KB Output is correct
10 Correct 120 ms 816 KB Output is correct
11 Correct 125 ms 2428 KB Output is correct
12 Correct 122 ms 2380 KB Output is correct
13 Correct 122 ms 2396 KB Output is correct
14 Correct 121 ms 2448 KB Output is correct
15 Correct 120 ms 2452 KB Output is correct
16 Correct 120 ms 2396 KB Output is correct
17 Correct 123 ms 2456 KB Output is correct
18 Correct 132 ms 2308 KB Output is correct
19 Execution timed out 7017 ms 4880 KB Time limit exceeded
20 Halted 0 ms 0 KB -