Submission #850800

#TimeUsernameProblemLanguageResultExecution timeMemory
850800vjudge1Bubble Sort 2 (JOI18_bubblesort2)C++17
17 / 100
9058 ms2304 KiB
#include <bits/stdc++.h> #define all(v) ((v).begin(),(v).end()) #define ll long long #define F first #define S second const ll mod = 1e9 + 7; const ll mxN = 1e5 + 2; using namespace std; #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace __gnu_pbds; template<class T> using indexed_set = tree<T,null_type,less<T>,rb_tree_tag, tree_order_statistics_node_update>; // int readInt(){ // int i; // if(scanf("%d",&i)!=1){ // fprintf(stderr,"Error while reading input\n"); // exit(1); // } // return i; // } vector<int> countScans(vector<int> A,vector<int> X,vector<int> V){ int Q=X.size(); int N = A.size(); set<pair<int,int>>s; vector<int>ans; for(int i = 0; i < Q;i++){ A[X[i]] = V[i]; s.clear(); int x = 0; indexed_set<int>S; for(int j = 0;j < N;j++){ int x = 0; if(S.upper_bound(A[j]) != S.end()) x = S.size() - S.order_of_key(*(S.upper_bound(A[j]))); s.insert({x,j}); S.insert(A[j]); } auto y = s.end(); y--; ans.push_back((*y).first); } return ans; } // int main(){ // int N,Q; // N=readInt(); // Q=readInt(); // // std::vector<int> A(N); // for(int i=0;i<N;i++) // A[i]=readInt(); // // std::vector<int> X(Q),V(Q); // for(int j=0;j<Q;j++){ // X[j]=readInt(); // V[j]=readInt(); // } // // std::vector<int> res=countScans(A,X,V); // // for(int j=0;j<int(res.size());j++) // printf("%d\n",res[j]); // }

Compilation message (stderr)

bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:32:7: warning: unused variable 'x' [-Wunused-variable]
   32 |   int x = 0;
      |       ^
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