Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:80:25: error: ‘strlen’ was not declared in this scope int nr=0, len=strlen(s), db=0; ^ user.cpp:85:9: error: ‘db’ was not declared in this scope t[++db]=nr; ^ user.cpp:91:7: error: ‘db’ was not declared in this scope t[++db]=nr; ^ user.cpp:68:18: warning: unused variable ‘j’ [-Wunused-variable] int n, I, T, i, j,z,k; ^ user.cpp:68:20: warning: unused variable ‘z’ [-Wunused-variable] int n, I, T, i, j,z,k; ^