criptmat.cpp: In function 'int main()': criptmat.cpp:9: error: expected initializer before 'char' criptmat.cpp:10: error: 'fin' was not declared in this scope criptmat.cpp:12: error: 'fout' was not declared in this scope criptmat.cpp:8: warning: unused variable 'i' criptmat.cpp:8: warning: unused variable 'j'