SP694 DISUBSTR - Distinct Substrings
/*
统计每个节点的max和min, 然后求和即可
min = max[fa] + 1
*/
#include<cstdio>
#include<algorithm>
#include<iostream>
#include<cstring>
#include<queue>
#define ll long long
#define M 6010
#define mmp make_pair
using namespace std;
int read()
{
int nm = 0, f = 1;
char c = getchar();
for(; !isdigit(c); c = getchar()) if(c == '-') f = -1;
for(; isdigit(c); c = getchar()) nm = nm * 10 + c - '0';
return nm * f;
}
int t, ch[M][26], len[M], fa[M], cnt, lst;
char s[M];
void insert(int c)
{
int p = ++cnt, f = lst;
len[p] = len[f] + 1;
lst = p;
while(f && !ch[f][c]) ch[f][c] = p, f = fa[f];
if(!f)
{
fa[p] = 1;
return;
}
int q = ch[f][c], nq = ++cnt;
if(len[f] + 1 == len[q])
{
fa[p] = q;
cnt--;
return;
}
len[nq] = len[f] + 1;
fa[nq] = fa[q];
fa[q] = fa[p] = nq;
memcpy(ch[nq], ch[q], sizeof(ch[nq]));
while(f && ch[f][c] == q) ch[f][c] = nq, f = fa[f];
}
void init()
{
cnt = lst = 1;
memset(ch, 0, sizeof(ch));
memset(len, 0, sizeof(len));
memset(fa, 0, sizeof(fa));
}
int main()
{
t = read();
while(t--)
{
init();
scanf("%s", s + 1);
int l = strlen(s + 1);
for(int i = 1; i <= l; i++) insert(s[i] - 'A');
int ans = 0;
for(int i = 1; i <= cnt; i++) ans += len[i] - len[fa[i]];
cout << ans << "\n";
}
return 0;
}
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