deal.c:2:18: cstdio: No such file or directory deal.c:3:19: cassert: No such file or directory deal.c:4:19: fstream: No such file or directory deal.c:6: parse error before "namespace" deal.c:6: warning: type defaults to `int' in declaration of `std' deal.c:6: warning: data definition has no type or storage class deal.c: In function `main': deal.c:15: warning: implicit declaration of function `freopen' deal.c:15: `stdin' undeclared (first use in this function) deal.c:15: (Each undeclared identifier is reported only once deal.c:15: for each function it appears in.) deal.c:16: `stdout' undeclared (first use in this function) deal.c:18: warning: implicit declaration of function `scanf' deal.c:19: warning: implicit declaration of function `assert' deal.c:88: warning: implicit declaration of function `printf' deal.c:88: warning: int format, different type arg (arg 2)