Submission #533421

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
533421	2022-03-06 03:09:47	Marslai24	Crossing (JOI21_crossing)	C++17	100 / 100	303 ms	31500 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
#define int long long // a.k.a. TLE creator
#define all(x) x.begin(), x.end()
template<class A, class B> istream& operator >>(istream &o, pair<A, B> &x){return o >> x.first >> x.second;}
template<class A, class B> ostream& operator <<(ostream &o, pair<A, B> &x){return o << x.first << ' ' << x.second << ' ';}
void setIO(){ios::sync_with_stdio(false); cin.tie(0);}
const int INF = 2e18, MOD = 998244353, N = 2e5 + 2;
int pw[N]{}, p = 9973;
void init(){
    pw[0] = 1;
    for(int i = 1; i < N; i++)pw[i] = pw[i - 1] * p % MOD;
}
struct Hash{
    vector<int> h;
    Hash(string s){
        h.resize(s.size() + 1);
        for(int i = 0; i < s.size(); i++){
            h[i + 1] = (h[i] * p + s[i]) % MOD;
        }
    }
    int get(int l, int r){
        int ans = h[r + 1] - h[l] * pw[r - l + 1] % MOD;
        if(ans < 0)ans += MOD;
        return ans;
    }
}J(string(N, 'J')), O(string(N, 'O')), I(string(N, 'I'));
 
 
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Compilation message (stderr)

Main.cpp: In constructor 'Hash::Hash(std::string)':
Main.cpp:21:26: 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]
   21 |         for(int i = 0; i < s.size(); i++){
      |                        ~~^~~~~~~~~~
Main.cpp: In function 'void build(long long int, long long int, long long int)':
Main.cpp:67:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   67 |     int m = l + r >> 1;
      |             ~~^~~
Main.cpp: In function 'void chg(long long int, long long int, char, long long int, long long int, long long int)':
Main.cpp:76:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   76 |     int m = l + r >> 1;
      |             ~~^~~

• Subtask 1: 3 / 3
• Subtask 2: 23 / 23
• Subtask 3: 23 / 23
• Subtask 4: 51 / 51