Submission #675669

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
675669	2022-12-27 17:30:48	MrBrionix	Palindromic Partitions (CEOI17_palindromic)	C++17	100 / 100	5440 ms	99052 KiB

palindromic

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#include<bits/stdc++.h>
using namespace std;
constexpr int MAXN = 1 << 20, LOGN = 21;
int table[LOGN][MAXN];
void build(int N, vector<int> &V) {
    copy(V.begin(), V.begin()+N, table[0]);
    for (int j = 1; j < LOGN; j++) {
        for (int i = 0; i + (1 << j) <= N; i++) {
            table[j][i]=min(table[j-1][i],
                table[j-1][i+(1<<j)/2]);
        }
    }
}
int query(int l, int r) {
    int k = 31 - __builtin_clz(r - l); // [l, r)
    return min(table[k][l], table[k][r-(1 << k)]);
}
template<class T> using V = vector<T>; 
using vi = V<int>;
#define sz(x) int((x).size())
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define each(a,x) for (auto& a: x)
#define all(x) begin(x), end(x)
struct SuffixArray {
    string S; int N; vi sa, isa, lcp;
    void init(string _S) { N = sz(S = _S)+1; genSa(); genLcp(); }
 
 
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Compilation message (stderr)

palindromic.cpp: In function 'void solve()':
palindromic.cpp:69:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |     for(int i=0;i<s.size()/2;i++){
      |                 ~^~~~~~~~~~~
palindromic.cpp:76:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |     if(last!=s.size()/2 || s.size()%2==1)ans++;
      |        ~~~~^~~~~~~~~~~~
palindromic.cpp:62:9: warning: variable 'n' set but not used [-Wunused-but-set-variable]
   62 |     int n;
      |         ^

• Subtask 1: 15 / 15
• Subtask 2: 20 / 20
• Subtask 3: 25 / 25
• Subtask 4: 40 / 40