powerpuff.cpp:1:21: error: fstream.h: No such file or directory powerpuff.cpp:3: error: 'ifstream' does not name a type powerpuff.cpp:4: error: 'ofstream' does not name a type powerpuff.cpp: In function 'int main()': powerpuff.cpp:11: error: 'fin' was not declared in this scope powerpuff.cpp:46: error: 'fout' was not declared in this scope powerpuff.cpp:49: error: 'fout' was not declared in this scope