cafea.cpp: In function 'int main()': cafea.cpp:7: error: 'n' was not declared in this scope cafea.cpp:9: error: 'i' was not declared in this scope cafea.cpp:10: error: 'x' was not declared in this scope cafea.cpp:11: error: 'nr' was not declared in this scope cafea.cpp:12: error: 'j' was not declared in this scope cafea.cpp:13: error: 'k' was not declared in this scope cafea.cpp:17: error: expected primary-expression before '}' token cafea.cpp:17: error: expected ';' before '}' token