Submission #140269

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
140269	2019-08-02 12:14:06	ae04071	Necklace (Subtask 1-3) (BOI19_necklace1)	C++11	85 / 85	391 ms	508 KiB

necklace

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#include <bits/stdc++.h>
using namespace std;
int n,m;
char s[3010],t[3010];
int pi[3010],fm[3010],bm[3010];
void getpi() {
    int i=0;
    for(int j=1;j<m;j++) {
        while(i && t[i]!=t[j]) i = pi[i-1];
        if(t[i]==t[j]) pi[j]=++i;
    }
}
void kmp(int *arr) {
    int j=0;
    for(int i=0;i<n;i++) {
        while(j && s[i]!=t[j]) {
            j = pi[j-1];
        }
        if(s[i]==t[j]) {
            ++j;
            if(j==m) {
                j=pi[j-1];
            }
        }
        arr[i] = j;
    }
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

necklace.cpp: In function 'int main()':
necklace.cpp:63:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s%s",s,t);
     ~~~~~^~~~~~~~~~~~

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