What Will Be The Best Case Time Complexity Of The Following #541

 #include<bits/stdc++.h> using namespace std; void func(char* str2, char* str1) { int m = strlen(str2); int n = strlen(str1);  for (int i = 0; i <= n - m; i++) { int j;   for (j = 0; j < m; j++) if (str1[i + j] != str2[j]) break;  if (j == m) cout << i << endl; } }  int main() { char str1[] = "1253234"; char str2[] = "323"; func(str2, str1); return 0; }