piramide.cpp:1:21: error: fstream.h: No such file or directory piramide.cpp: In function 'int main()': piramide.cpp:6: error: 'ifstream' was not declared in this scope piramide.cpp:6: error: expected ';' before 'fin' piramide.cpp:7: error: 'ofstream' was not declared in this scope piramide.cpp:7: error: expected ';' before 'fout' piramide.cpp:8: error: 'fin' was not declared in this scope piramide.cpp:14: error: 'fout' was not declared in this scope