zar1.cpp: In function `int main()': zar1.cpp:8: `nr' undeclared (first use this function) zar1.cpp:8: (Each undeclared identifier is reported only once for each function it appears in.) zar1.cpp:9: `a' undeclared (first use this function) zar1.cpp:12: invalid types `int[int]' for array subscript zar1.cpp:16: `j' undeclared (first use this function)