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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. #define mt make_tuple
  5. #define mkp make_pair
  6. #define pb push_back
  7. #define pii pair<ll,ll>
  8. #define pss pair<int,int>
  9. #define pdd pair<double,double>
  10. #define pldd pair<ld,ld>
  11. #define pff pair<float,float>
  12. #define piii pair<ll, pair<ll,ll> >
  13. #define pddd pair<ld, pair<ld,ld> >
  14. #define ff first
  15. #define ss second
  16. typedef long long int ll;
  17. typedef unsigned long long int ull;
  18. typedef long double ld;
  19.  
  20.  
  21.  
  22.  
  23.  
  24. const int N = (1 << 18);
  25.  
  26. int smbit[N];
  27. int smbig[N];
  28. int osobist[N];
  29. int cur = 0;
  30.  
  31. int getBits(int s) {
  32. int ans = 0;
  33. for(int i = 0; i < 16; i++) {
  34. if((s & (1 << i)) != 0)
  35. ans++;
  36. }
  37. return ans;
  38. }
  39.  
  40. void addSm(int kz, int s, int bit, int add) {
  41. smbit[s] += add;
  42. }
  43.  
  44. int getSm(int kz, int s, int bit) {
  45. if(bit == 16) {
  46. return smbit[kz];
  47. }
  48. int ans = 0;
  49. if((s & (1 << bit)) != 0)
  50. ans += getSm(kz | (1 << bit), s, bit + 1);
  51. ans += getSm(kz, s, bit + 1);
  52. return ans;
  53. }
  54.  
  55. void addBg(int kz, int s, int bit, int add) {
  56. if(bit == 16) {
  57. smbig[kz] += add;
  58. return;
  59. }
  60. addBg(kz | (1 << bit), s, bit + 1, add);
  61. if((s & (1 << bit)) == 0)
  62. addBg(kz, s, bit + 1, add);
  63. }
  64.  
  65. int getBg(int kz, int s, int bit) {
  66. return smbig[s];
  67. }
  68.  
  69.  
  70. int main() {
  71. int q;
  72. cin >> q;
  73.  
  74. fill(smbit, smbit + N, 0);
  75. fill(smbig, smbig + N, 0);
  76. fill(osobist, osobist + N, 0);
  77.  
  78. int cnt = 0;
  79.  
  80. while(q--) {
  81. string com;
  82. int s;
  83. cin >> com >> s;
  84.  
  85. int bits = getBits(s);
  86.  
  87. if(bits <= 8) {
  88. int add = 0;
  89. if(com == "add") {
  90. cur++;
  91. addSm(0, s, 0, 1);
  92. add = 1;
  93. } else if(com == "del") {
  94. cur--;
  95. addSm(0, s, 0, -1);
  96. add = -1;
  97. } else {
  98. printf("%d\n", getSm(0, s, 0));
  99. }
  100.  
  101. if(add != 0) {
  102. int gig = (1 << 16) - 1;
  103. osobist[gig] += add;
  104. for(int i = 0; i < 16; i++) {
  105. if((s & (1 << i)) == 0)
  106. osobist[gig - (1 << i)] += add;
  107. }
  108.  
  109. //for(int i = 0; i < 16; i++) {
  110. // for(int z = i + 1; z < 16; z++) {
  111. // osobist[(gig - (1 << i)) - (1 << z)] += add;
  112. // }
  113. //}
  114. }
  115. } else {
  116. if(com == "add") {
  117. cur++;
  118. addBg(0, s, 0, 1);
  119. } else if(com == "del") {
  120. cur--;
  121. addBg(0, s, 0, -1);
  122. } else {
  123. int ans = getBg(0, s, 0);
  124.  
  125. if(bits >= 15)
  126. ans += osobist[s];
  127. else {
  128. for(int ss = s; ; ss = (ss - 1) & s) {
  129. ans += smbit[ss];
  130. if(ss == 0) break;
  131. }
  132. }
  133.  
  134. printf("%d\n", ans);
  135. }
  136. }
  137. }
  138. }
  139.  
  140.  
  141.  
Runtime error #stdin #stdout 0.03s 6532KB
stdin
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