Eroare de compilare: user.cpp: In function ‘void modifica(char*, char*, int)’: user.cpp:23:29: error: ‘strlen’ was not declared in this scope { for(int i=p+1;i<p+strlen(x);i++) ^ user.cpp: In function ‘int main()’: user.cpp:73:29: error: ‘strstr’ was not declared in this scope char *p=strstr(w,s[t].a); ^ user.cpp:83:34: error: ‘strstr’ was not declared in this scope if(z!=j&& strstr(w,u[z].name)&& ok==0) ^ user.cpp:85:34: error: ‘strstr’ was not declared in this scope if(z!=j&& strstr(w,u[z].name)&& ok) ^