Borderou de evaluare (job #39281)

Eroare de compilare: user.cpp: In function ‘long long int putere4(long int)’: user.cpp:8:11: error: ‘pow’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:31:2: error: ‘ifstream’ was not declared in this scope user.cpp:31:2: note: suggested alternative: /usr/include/c++/4.6/iosfwd:159:34: note: ‘std::ifstream’ user.cpp:31:11: error: expected ‘;’ before ‘f’ user.cpp:32:2: error: ‘ofstream’ was not declared in this scope user.cpp:32:2: note: suggested alternative: /usr/include/c++/4.6/iosfwd:162:34: note: ‘std::ofstream’ user.cpp:32:11: error: expected ‘;’ before ‘g’ user.cpp:54:31: error: ‘qsort’ was not declared in this scope user.cpp:59:2: error: ‘f’ was not declared in this scope user.cpp:66:12: error: ‘pow’ was not declared in this scope user.cpp:83:2: error: ‘g’ was not declared in this scope user.cpp:34:9: warning: unused variable ‘v’ [-Wunused-variable]