/tmp/solutions/build/unionfind-main.cpp:
    1|       |#include <common.h>
    2|       |prelude;
    3|       |
    4|       |namespace {
    5|       |
    6|       |int pa[200000];
    7|       |
    8|   400k|def find(int u) -> int {
    9|   400k|  int w = pa[u], v;
   10|   400k|  if (w < 0) return u;
                           ^124k
  ------------------
  |  Branch (10:7): [True: 31.19%, False: 68.81%]
  ------------------
   11|   315k|  while (pa[w] >= 0) w = pa[w];
                ^275k              ^40.5k
  ------------------
  |  Branch (11:10): [True: 12.84%, False: 87.16%]
  ------------------
   12|   315k|  while (pa[u] != w) v = u, u = pa[u], pa[v] = w;
                                   ^40.5k
  ------------------
  |  Branch (12:10): [True: 12.84%, False: 87.16%]
  ------------------
   13|   275k|  return w;
   14|   400k|};
   15|       |
   16|       |} // namespace
   17|       |
   18|      1|int main() {
   19|      1|  rd rd;
   20|      1|  wt wt;
   21|      1|  int n = rd.uh();
   22|      1|  int q = rd.uh();
   23|      1|  std::memset(pa, -1, 4 * n);
   24|   200k|  while (q--) {
  ------------------
  |  Branch (24:10): [True: 100.00%, False: 0.00%]
  ------------------
   25|   200k|    let t = rd.u1();
   26|   200k|    let u = find(rd.uh());
   27|   200k|    let v = find(rd.uh());
   28|   200k|    if (t == 0 && u != v) {
                                ^100k
  ------------------
  |  Branch (28:9): [True: 50.18%, False: 49.82%]
  |  Branch (28:19): [True: 51.86%, False: 48.14%]
  ------------------
   29|  52.0k|      if (pa[u] < pa[v])
  ------------------
  |  Branch (29:11): [True: 33.71%, False: 66.29%]
  ------------------
   30|  17.5k|        pa[v] = u;
   31|  34.5k|      else if (pa[v] < pa[u])
  ------------------
  |  Branch (31:16): [True: 51.68%, False: 48.32%]
  ------------------
   32|  17.8k|        pa[u] = v;
   33|  16.6k|      else
   34|  16.6k|        pa[u] = v, --pa[v];
   35|  52.0k|    }
   36|   200k|    if (t == 1) {
  ------------------
  |  Branch (36:9): [True: 49.82%, False: 50.18%]
  ------------------
   37|  99.6k|      wt.u1(u == v);
   38|  99.6k|    }
   39|   200k|  }
   40|      1|  return 0;
   41|      1|}