origami.cpp:8: declaration does not declare anything origami.cpp: In function `int main()': origami.cpp:11: `n' undeclared (first use this function) origami.cpp:11: (Each undeclared identifier is reported only once for each function it appears in.) origami.cpp:13: `k' undeclared (first use this function) origami.cpp:15: `i' undeclared (first use this function) origami.cpp:16: `j' undeclared (first use this function) origami.cpp:17: `mat' undeclared (first use this function) origami.cpp:21: `a' undeclared (first use this function) origami.cpp:21: `b' undeclared (first use this function) origami.cpp:23: `l' undeclared (first use this function) origami.cpp:24: `tip' undeclared (first use this function) origami.cpp:24: `dist' undeclared (first use this function) origami.cpp:33: parse error before `)' token