Borderou de evaluare (job #733484)

Eroare de compilare: main.c:4:1: error: unknown type name 'using' 4 | using namespace std; | ^~~~~ main.c:4:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std' 4 | using namespace std; | ^~~ main.c: In function 'main': main.c:30:9: error: 'cin' undeclared (first use in this function); did you mean 'fin'? 30 | cin>>x; | ^~~ | fin main.c:30:9: note: each undeclared identifier is reported only once for each function it appears in main.c:26:5: warning: ignoring return value of 'fscanf' declared with attribute 'warn_unused_result' [-Wunused-result] 26 | fscanf(fin,"%d%d",&n,&k); | ^~~~~~~~~~~~~~~~~~~~~~~~