I_Love_DS @ 2024-11-29 22:07:41
#include <bits/stdc++.h>
using namespace std;
const int N = 3000001, S = 65;
int n, q;
int nxt[N][S], cnt;
int is[N];
char a[N];
int check(char x) {
if (isupper(x)) return x - 'A';
if (islower(x)) return 26 + x - 'a';
return 52 + x - '0';
}
void insert(char s[], int len) {
int now = 0;
for (int i = 1; i <= len; i++) {
int x = check(s[i]);
if (!nxt[now][x]) nxt[now][x] = ++cnt;
now = nxt[now][x];
++is[now];
}
}
int search(char s[], int len) {
int now = 0;
for (int i = 1; i <= len; i++) {
int x = check(s[i]);
if (!nxt[now][x]) return 0;
now = nxt[now][x];
}
return is[now];
}
void solve() {
for (int i = 1; i <= cnt; i++)
for (int j = 1; j <= 64; j++)
nxt[i][j] = 0;
for (int i = 1; i <= cnt; i++) is[i] = 0;
cnt = 0;
scanf("%d%d", &n, &q);
for (int i = 1; i <= n; i++) {
scanf("%s", a + 1);
int m = strlen(a + 1);
insert(a, m);
}
for (int i = 1; i <= q; i++) {
scanf("%s", a + 1);
int m = strlen(a + 1);
printf("%d\n", search(a, m));
}
}
int main() {
int t;
scanf("%d", &t);
while (t--) solve();
return 0;
}
by lowbit @ 2024-11-29 22:24:15
你调用函数那里也要写 a+1
啊@I_Love_DS
by I_Love_DS @ 2024-11-29 22:51:28
@lowbit
好像不对。
具体化的?
提前祝您 NOIP RP++!
by I_Love_DS @ 2024-11-29 22:58:12
@lowbit
原来清空时下标应该从 0 起始的。
谢谢!虽然你没有给我根本地解决问题,但你的态度很好,希望给我指正错误!谢谢!祝您 NOIP RP++!!