Borderou de evaluare (job #164322)

Eroare de compilare: user.c:2:1: error: unknown type name ‘using’ user.c:2:17: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘std’ user.c: In function ‘number1’: user.c:16:13: warning: implicit declaration of function ‘swap’ [-Wimplicit-function-declaration] user.c: In function ‘main’: user.c:79:9: warning: implicit declaration of function ‘abs’ [-Wimplicit-function-declaration] user.c:64:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:66:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]