parcela.cpp: In function `void fill(int, int)': parcela.cpp:13: `mat' undeclared (first use this function) parcela.cpp:13: (Each undeclared identifier is reported only once for each function it appears in.) parcela.cpp:15: `v' undeclared (first use this function) parcela.cpp:17: `sum' undeclared (first use this function) parcela.cpp:17: `nr' undeclared (first use this function) parcela.cpp: At global scope: parcela.cpp:26: extraneous `int' ignored parcela.cpp: In function `int main()': parcela.cpp:28: `n' undeclared (first use this function) parcela.cpp:29: `m' undeclared (first use this function) parcela.cpp:30: `s' undeclared (first use this function) parcela.cpp:31: `i' undeclared (first use this function) parcela.cpp:31: `j' undeclared (first use this function)