Eroare de compilare: main.c: In function 'Q': main.c:17:13: error: 'e' undeclared (first use in this function) int k=E(l,e); ^ main.c:17:13: note: each undeclared identifier is reported only once for each function it appears in main.c: In function 'main': main.c:28:15: error: 't' undeclared (first use in this function) ++p,b[0][p]=t=k,++i,b[1][p]=-1; ^ main.c:28:18: warning: left-hand operand of comma expression has no effect [-Wunused-value] ++p,b[0][p]=t=k,++i,b[1][p]=-1; ^ main.c:30:15: warning: left-hand operand of comma expression has no effect [-Wunused-value] b[1][p]=t=l,b[2][p]=-1,++i; ^ main.c:23:5: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("prieteni.in","r",stdin),freopen("prieteni.out","w",stdout),scanf("%d",&n); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:23:38: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("prieteni.in","r",stdin),freopen("prieteni.out","w",stdout),scanf("%d",&n); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:23:73: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] freopen("prieteni.in","r",stdin),freopen("prieteni.out","w",stdout),scanf("%d",&n); ^~~~~~~~~~~~~~ main.c:25:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",a+i); ^~~~~~~~~~~~~~~ Non zero exit status: 1