Submission #514511

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
514511	2022-01-18 08:30:17	Mahdi	Necklace (Subtask 1-3) (BOI19_necklace1)	C++17	85 / 85	448 ms	452 KiB

necklace

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#include<bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
#define all(v) v.begin(), v.end()
#define F first
#define S second
typedef long long ll;
typedef pair<int, int> pii;
const int N=3e3+5;
int n, m, f[2*N], g[2*N];
string s, t, u;
void opr1(){
    int x;
    for(int i=1;i<u.size();++i){
        f[i]=0;
        x=f[i-1];
        while(true){
            if(u[i]==u[x]){
                f[i]=x+1;
                break;
            }
            if(x==0)
                break;
            x=f[x-1];
        }
    }
}
void opr2(){
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

necklace.cpp: In function 'void opr1()':
necklace.cpp:15:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for(int i=1;i<u.size();++i){
      |                 ~^~~~~~~~~
necklace.cpp: In function 'void opr2()':
necklace.cpp:32:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for(int i=1;i<u.size();++i){
      |                 ~^~~~~~~~~

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