Eroare de compilare: user.c: In function ‘main’: user.c:12:13: error: ‘t’ undeclared (first use in this function) for(t=0,l=1;l<=s[i][j][0]||l<=s[i-1][j-d-1][0]||t;l++,t/=10) ^ user.c:12:13: note: each undeclared identifier is reported only once for each function it appears in user.c:12:16: warning: left-hand operand of comma expression has no effect [-Wunused-value] for(t=0,l=1;l<=s[i][j][0]||l<=s[i-1][j-d-1][0]||t;l++,t/=10) ^ user.c:4:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("sg1.in","r",stdin),freopen("sg1.out","w",stdout),scanf("%d%d%d%d",&n,&k,&a,&b); ^ user.c:4:40: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("sg1.in","r",stdin),freopen("sg1.out","w",stdout),scanf("%d%d%d%d",&n,&k,&a,&b); ^ user.c:4:68: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] freopen("sg1.in","r",stdin),freopen("sg1.out","w",stdout),scanf("%d%d%d%d",&n,&k,&a,&b); ^