nrpomi.cpp:2:22: error: fstream.h: No such file or directory nrpomi.cpp:3: error: 'ifstream' does not name a type nrpomi.cpp:4: error: 'ofstream' does not name a type nrpomi.cpp: In function 'int main()': nrpomi.cpp:9: error: 'f' was not declared in this scope nrpomi.cpp:36: error: 'g' was not declared in this scope