Submission #502217

#	Time	Username	Problem	Language	Result	Execution time	Memory
502217		Lobo	Railway (BOI17_railway)	C++17	Compilation error	0 ms	0 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

railway

//.fr = pai .sc = filho
    if(u != 1 && edg[id].fr == u) swap(edg[id].fr,edg[id].sc);

    p[u][0] = ant;
    for(ii i = 1; i <= 20; i++) {
        p[u][i] = p[p[u][i-1]][i-1];
    }

    for(auto V : g[u]) {
        ii v = V.fr;
        ii id1 = V.sc;
        if(v == ant) continue;
        h[v] = h[u]+1;
        
        dfslca(v,u,id1);
    }

Compilation message (stderr)

railway.cpp:2:5: error: expected unqualified-id before 'if'
    2 |     if(u != 1 && edg[id].fr == u) swap(edg[id].fr,edg[id].sc);
      |     ^~
railway.cpp:4:5: error: 'p' does not name a type
    4 |     p[u][0] = ant;
      |     ^
railway.cpp:5:5: error: expected unqualified-id before 'for'
    5 |     for(ii i = 1; i <= 20; i++) {
      |     ^~~
railway.cpp:5:19: error: 'i' does not name a type
    5 |     for(ii i = 1; i <= 20; i++) {
      |                   ^
railway.cpp:5:28: error: 'i' does not name a type
    5 |     for(ii i = 1; i <= 20; i++) {
      |                            ^
railway.cpp:9:5: error: expected unqualified-id before 'for'
    9 |     for(auto V : g[u]) {
      |     ^~~