Eroare de compilare: user.c: In function ‘main’: user.c:8:52: error: ‘r’ undeclared (first use in this function) s[i]=(j==1?(i<=e?c:10001):(s[i]<c+(i>e?r[i-e]:0)?s[i]:(c+(i>e?s[i-e]:0)))); ^ user.c:8:52: note: each undeclared identifier is reported only once for each function it appears in user.c:4:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("energii.in","r",stdin),freopen("energii.out","w",stdout),scanf("%d%d",&n,&m); ^ user.c:4:41: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("energii.in","r",stdin),freopen("energii.out","w",stdout),scanf("%d%d",&n,&m); ^ user.c:4:73: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] freopen("energii.in","r",stdin),freopen("energii.out","w",stdout),scanf("%d%d",&n,&m); ^ user.c:6:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&e,&c); ^