'commit'

TangDou/AcWing/aabbccdd.cpp

@@ -0,0 +1,26 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+const int N = 1e5 + 10;
+const int M = 1e6 + 10;
+int ne[N];
+int n, m;
+char s[M], p[N];
+
+int main() {
+    cin >> n >> (p + 1) >> m >> (s + 1);
+    for (int i = 2, j = 0; i <= n; i++) {
+        while (i && p[i] != p[j + 1]) j = ne[j];
+        if (p[i] == p[j + 1]) j++;
+        ne[i] = j;
+    }
+    for (int i = 1, j = 0; i <= m; i++) {
+        while (i && s[i] != p[j + 1]) j = ne[j];
+        if (s[i] == p[j + 1]) j++;
+        if (j == n) {
+            printf("%d ", i - n);
+            j = ne[j];
+        }
+    }
+    return 0;
+}