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  1. //teja349
  2. #include <bits/stdc++.h>
  3. #include <vector>
  4. #include <set>
  5. #include <map>
  6. #include <string>
  7. #include <cstdio>
  8. #include <cstdlib>
  9. #include <climits>
  10. #include <utility>
  11. #include <algorithm>
  12. #include <cmath>
  13. #include <queue>
  14. #include <stack>
  15. #include <iomanip>
  16. #include <ext/pb_ds/assoc_container.hpp>
  17. #include <ext/pb_ds/tree_policy.hpp>
  18. //setbase - cout << setbase (16); cout << 100 << endl; Prints 64
  19. //setfill - cout << setfill ('x') << setw (5); cout << 77 << endl; prints xxx77
  20. //setprecision - cout << setprecision (14) << f << endl; Prints x.xxxx
  21. //cout.precision(x) cout<<fixed<<val; // prints x digits after decimal in val
  22.  
  23. using namespace std;
  24. using namespace __gnu_pbds;
  25.  
  26. #define f(i,a,b) for(i=a;i<b;i++)
  27. #define rep(i,n) f(i,0,n)
  28. #define fd(i,a,b) for(i=a;i>=b;i--)
  29. #define pb push_back
  30. #define mp make_pair
  31. #define vi vector< int >
  32. #define vl vector< ll >
  33. #define ss second
  34. #define ff first
  35. #define ll long long
  36. #define pii pair< int,int >
  37. #define pll pair< ll,ll >
  38. #define sz(a) a.size()
  39. #define inf (1000*1000*1000+5)
  40. #define all(a) a.begin(),a.end()
  41. #define tri pair<int,pii>
  42. #define vii vector<pii>
  43. #define vll vector<pll>
  44. #define viii vector<tri>
  45. #define mod (1000*1000*1000+7)
  46. #define pqueue priority_queue< int >
  47. #define pdqueue priority_queue< int,vi ,greater< int > >
  48. #define flush fflush(stdout)
  49. #define primeDEN 727999983
  50. mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
  51.  
  52. // find_by_order() // order_of_key
  53. typedef tree<
  54. int,
  55. null_type,
  56. less<int>,
  57. rb_tree_tag,
  58. tree_order_statistics_node_update>
  59. ordered_set;
  60. vector<set<int> > seti(123);
  61. int s[123456];
  62. int main(){
  63. std::ios::sync_with_stdio(false); cin.tie(NULL);
  64. int n,q;
  65. cin>>n>>q;
  66. int i;
  67. rep(i,n){
  68. cin>>s[i];
  69. seti[s[i]].insert(i);
  70. }
  71. int typ,pos,val,j,l,r;
  72. set<int>::iterator it;
  73. rep(i,q){
  74. cin>>typ;
  75. if(typ==1){
  76. cin>>pos>>val;
  77. pos--;
  78. seti[s[pos]].erase(pos);
  79. s[pos]=val;
  80. seti[s[pos]].insert(pos);
  81. }
  82. else{
  83. cin>>l>>r;
  84. l--;
  85. r--;
  86. pii mini=mp(10,0);
  87. f(j,1,51){
  88. it=seti[j].lower_bound(l);
  89. if(it==seti[j].end())
  90. continue;
  91. if(*it>r)
  92. continue;
  93. val=*it;
  94. it=seti[j].upper_bound(r);
  95. it--;
  96. val=*it-val;
  97. mini=min(mini,mp(-1*val,j));
  98. }
  99. cout<<mini.ss<<endl;
  100. }
  101. }
  102.  
  103. return 0;
  104. }
  105.  
Success #stdin #stdout 0.03s 15720KB
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