/tmp/solutions/build/predecessor_problem-main.cpp:
    1|       |#include <common.h>
    2|       |prelude;
    3|       |
    4|       |namespace {
    5|       |
    6|       |u64 root;
    7|       |u64 lv18[39];
    8|       |u64 lv12[2442];
    9|       |u64 leaf[156250];
   10|       |
   11|      0|void set(u32 x) {
   12|      0|  leaf[x >> 6] |= 1ull << (x & 63);
   13|      0|  lv12[x >> 12] |= 1ull << ((x >> 6) & 63);
   14|      0|  lv18[x >> 18] |= 1ull << ((x >> 12) & 63);
   15|      0|  root |= 1ull << (x >> 18);
   16|      0|}
   17|       |
   18|      0|void unset(u32 x) {
   19|      0|  if (!(leaf[x >> 6] &= ~(1ull << (x & 63))))
  ------------------
  |  Branch (19:7): [True: 0.00%, False: 0.00%]
  ------------------
   20|      0|    if (!(lv12[x >> 12] &= ~(1ull << ((x >> 6) & 63))))
  ------------------
  |  Branch (20:9): [True: 0.00%, False: 0.00%]
  ------------------
   21|      0|      if (!(lv18[x >> 18] &= ~(1ull << ((x >> 12) & 63))))
  ------------------
  |  Branch (21:11): [True: 0.00%, False: 0.00%]
  ------------------
   22|      0|        root &= ~(1ull << (x >> 18));
   23|      0|}
   24|       |
   25|      0|bool get(u32 x) { return leaf[x >> 6] & (1ull << (x & 63)); }
   26|       |
   27|   499k|u32 nxt(u32 x) {
   28|   499k|  if (u64 tmp = leaf[x >> 6] & (-1ull << (x & 63)); !tmp) {
  ------------------
  |  Branch (28:53): [True: 100.00%, False: 0.00%]
  ------------------
   29|   499k|    if (u64 tmp = lv12[x >> 12] & (-2ull << ((x >> 6) & 63)); !tmp) {
  ------------------
  |  Branch (29:63): [True: 99.80%, False: 0.20%]
  ------------------
   30|   498k|      if (u64 tmp = lv18[x >> 18] & (-2ull << ((x >> 12) & 63)); !tmp) {
  ------------------
  |  Branch (30:66): [True: 91.29%, False: 8.71%]
  ------------------
   31|   455k|        if (u64 tmp = root & (-2ull << (x >> 18)); !tmp) {
  ------------------
  |  Branch (31:52): [True: 0.79%, False: 99.21%]
  ------------------
   32|  3.61k|          return -1;
   33|   451k|        } else {
   34|   451k|          u32 ans = __builtin_ctzll(tmp);
   35|   451k|          ans = ans << 6 | __builtin_ctzll(lv18[ans]);
   36|   451k|          ans = ans << 6 | __builtin_ctzll(lv12[ans]);
   37|   451k|          ans = ans << 6 | __builtin_ctzll(leaf[ans]);
   38|   451k|          return ans;
   39|   451k|        }
   40|   455k|      } else {
   41|  43.4k|        u32 ans = (x >> 18) << 6 | __builtin_ctzll(tmp);
   42|  43.4k|        ans = ans << 6 | __builtin_ctzll(lv12[ans]);
   43|  43.4k|        ans = ans << 6 | __builtin_ctzll(leaf[ans]);
   44|  43.4k|        return ans;
   45|  43.4k|      }
   46|   498k|    } else {
   47|  1.02k|      u32 ans = (x >> 12) << 6 | __builtin_ctzll(tmp);
   48|  1.02k|      ans = ans << 6 | __builtin_ctzll(leaf[ans]);
   49|  1.02k|      return ans;
   50|  1.02k|    }
   51|   499k|  } else {
   52|     13|    u32 ans = (x >> 6) << 6 | __builtin_ctzll(tmp);
   53|     13|    return ans;
   54|     13|  }
   55|   499k|}
   56|       |
   57|   500k|u32 pre(u32 x) {
   58|   500k|  if (u64 tmp = leaf[x >> 6] & ~(-2ull << (x & 63)); !tmp) {
  ------------------
  |  Branch (58:54): [True: 100.00%, False: 0.00%]
  ------------------
   59|   500k|    if (u64 tmp = lv12[x >> 12] & ~(-1ull << ((x >> 6) & 63)); !tmp) {
  ------------------
  |  Branch (59:64): [True: 99.93%, False: 0.07%]
  ------------------
   60|   500k|      if (u64 tmp = lv18[x >> 18] & ~(-1ull << ((x >> 12) & 63)); !tmp) {
  ------------------
  |  Branch (60:67): [True: 90.68%, False: 9.32%]
  ------------------
   61|   453k|        if (u64 tmp = root & ~(-1ull << (x >> 18)); !tmp) {
  ------------------
  |  Branch (61:53): [True: 20.42%, False: 79.58%]
  ------------------
   62|  92.5k|          return -1;
   63|   360k|        } else {
   64|   360k|          u32 ans = 63 - __builtin_clzll(tmp);
   65|   360k|          ans = ans << 6 | 63 - __builtin_clzll(lv18[ans]);
   66|   360k|          ans = ans << 6 | 63 - __builtin_clzll(lv12[ans]);
   67|   360k|          ans = ans << 6 | 63 - __builtin_clzll(leaf[ans]);
   68|   360k|          return ans;
   69|   360k|        }
   70|   453k|      } else {
   71|  46.5k|        u32 ans = (x >> 18) << 6 | 63 - __builtin_clzll(tmp);
   72|  46.5k|        ans = ans << 6 | 63 - __builtin_clzll(lv12[ans]);
   73|  46.5k|        ans = ans << 6 | 63 - __builtin_clzll(leaf[ans]);
   74|  46.5k|        return ans;
   75|  46.5k|      }
   76|   500k|    } else {
   77|    370|      u32 ans = (x >> 12) << 6 | 63 - __builtin_clzll(tmp);
   78|    370|      ans = ans << 6 | 63 - __builtin_clzll(leaf[ans]);
   79|    370|      return ans;
   80|    370|    }
   81|   500k|  } else {
   82|     16|    u32 ans = (x >> 6) << 6 | 63 - __builtin_clzll(tmp);
   83|     16|    return ans;
   84|     16|  }
   85|   500k|}
   86|       |
   87|       |} // namespace
   88|       |
   89|      1|int main() {
   90|      1|  rd rd;
   91|      1|  wt wt;
   92|      1|  int n = rd.uh();
   93|      1|  int q = rd.uh();
   94|      1|#ifdef LOCAL
   95|      1|  root = 0;
   96|      1|  std::memset(lv18, 0, sizeof(lv18));
   97|      1|  std::memset(lv12, 0, sizeof(lv12));
   98|      1|  std::memset(leaf, 0, sizeof(leaf));
   99|      1|#endif
  100|      1|  int i = 0;
  101|   156k|  for (; i + 64 < n; i += 64) {
                                   ^156k
  ------------------
  |  Branch (101:10): [True: 100.00%, False: 0.00%]
  ------------------
  102|   156k|    u32 a = _mm256_movemask_epi8(_mm256_cmpeq_epi8(
  103|   156k|        _mm256_loadu_si256(reinterpret_cast<const __m256i_u *>(rd.p + i)),
  104|   156k|        _mm256_set1_epi8('1')));
  105|   156k|    u32 b = _mm256_movemask_epi8(_mm256_cmpeq_epi8(
  106|   156k|        _mm256_loadu_si256(reinterpret_cast<const __m256i_u *>(rd.p + i + 32)),
  107|   156k|        _mm256_set1_epi8('1')));
  108|   156k|    leaf[i >> 6] = a | u64(b) << 32;
  109|   156k|  }
  110|     65|  for (; i < n; ++i) leaf[i >> 6] |= u64(rd.p[i] - '0') << (i & 63);
                              ^64  ^64
  ------------------
  |  Branch (110:10): [True: 98.46%, False: 1.54%]
  ------------------
  111|   156k|  for (int i = 0; i <= (n - 1) / 64; ++i)
                                                   ^156k
  ------------------
  |  Branch (111:19): [True: 100.00%, False: 0.00%]
  ------------------
  112|   156k|    lv12[i >> 6] |= u64(!!leaf[i]) << (i & 63);
  113|  2.44k|  for (int i = 0; i <= (n - 1) / 64 / 64; ++i)
                                                        ^2.44k
  ------------------
  |  Branch (113:19): [True: 99.96%, False: 0.04%]
  ------------------
  114|  2.44k|    lv18[i >> 6] |= u64(!!lv12[i]) << (i & 63);
  115|     40|  for (int i = 0; i <= (n - 1) / 64 / 64 / 64; ++i)
                                                             ^39
  ------------------
  |  Branch (115:19): [True: 97.50%, False: 2.50%]
  ------------------
  116|     39|    root |= u64(!!lv18[i]) << (i & 63);
  117|      1|  rd.p += n + 1;
  118|  1.00M|  while (q--) {
  ------------------
  |  Branch (118:10): [True: 100.00%, False: 0.00%]
  ------------------
  119|  1.00M|    let t = rd.u1();
  120|  1.00M|    let k = rd.uh();
  121|  1.00M|    if (t == 0) {
  ------------------
  |  Branch (121:9): [True: 0.00%, False: 100.00%]
  ------------------
  122|      0|      set(k);
  123|      0|    }
  124|  1.00M|    if (t == 1) {
  ------------------
  |  Branch (124:9): [True: 0.00%, False: 100.00%]
  ------------------
  125|      0|      unset(k);
  126|      0|    }
  127|  1.00M|    if (t == 2) {
  ------------------
  |  Branch (127:9): [True: 0.00%, False: 100.00%]
  ------------------
  128|      0|      let x = get(k);
  129|      0|      wt.uw(x);
  130|      0|    }
  131|  1.00M|    if (t == 3) {
  ------------------
  |  Branch (131:9): [True: 49.95%, False: 50.05%]
  ------------------
  132|   499k|      let x = nxt(k);
  133|   499k|      if (~x) {
  ------------------
  |  Branch (133:11): [True: 99.28%, False: 0.72%]
  ------------------
  134|   495k|        wt.uw(x);
  135|   495k|      } else {
  136|  3.61k|        wt.puts(" -1", 3);
  137|  3.61k|      }
  138|   499k|    }
  139|  1.00M|    if (t == 4) {
  ------------------
  |  Branch (139:9): [True: 50.05%, False: 49.95%]
  ------------------
  140|   500k|      let x = pre(k);
  141|   500k|      if (~x) {
  ------------------
  |  Branch (141:11): [True: 81.50%, False: 18.50%]
  ------------------
  142|   407k|        wt.uw(x);
  143|   407k|      } else {
  144|  92.5k|        wt.puts(" -1", 3);
  145|  92.5k|      }
  146|   500k|    }
  147|  1.00M|  }
  148|      1|  return 0;
  149|      1|}