Borderou de evaluare (job #603377)

Eroare de compilare: main.c:3:1: error: unknown type name 'using' 3 | using namespace std; | ^~~~~ main.c:3:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std' 3 | using namespace std; | ^~~ main.c: In function 'main': main.c:6:5: error: 'fin' undeclared (first use in this function) 6 | fin=fopen("concurs.in","r"); | ^~~ main.c:6:5: note: each undeclared identifier is reported only once for each function it appears in main.c:7:5: error: 'fout' undeclared (first use in this function) 7 | fout=fopen("concurs.out", "w"); | ^~~~ main.c:19:9: error: 'cin' undeclared (first use in this function) 19 | cin >> c;///123 | ^~~