Borderou de evaluare (job #88372)

Eroare de compilare: user.c:3:1: error: unknown type name ‘using’ user.c:3:17: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘std’ user.c: In function ‘main’: user.c:18:5: warning: passing argument 2 of ‘fprintf’ makes pointer from integer without a cast [enabled by default] /usr/include/i386-linux-gnu/bits/stdio2.h:96:1: note: expected ‘const char * __restrict__’ but argument is of type ‘int’ user.c:18:5: warning: format not a string literal and no format arguments [-Wformat-security] user.c:19:5: warning: passing argument 2 of ‘fprintf’ makes pointer from integer without a cast [enabled by default] /usr/include/i386-linux-gnu/bits/stdio2.h:96:1: note: expected ‘const char * __restrict__’ but argument is of type ‘int’ user.c:19:5: warning: format not a string literal and no format arguments [-Wformat-security] user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]