Submission #488370

#TimeUsernameProblemLanguageResultExecution timeMemory
488370alexander707070Floppy (RMI20_floppy)C++14
Compilation error
0 ms0 KiB
#include<bits/stdc++.h> using namespace std; string s; void read_array (int subtask_id,vector<int> v){ for(int i=0;i<v.size();i++){ if(v[i]>=0)s.push_back('0'); else s.push_back('1'); v[i]=abs(v[i]); for(int f=0;f<30;f++){ s.push_back(v[i]%2+'0'); v[i]/=2; } } save_to_floppy(s); } int c[80007],p; bool li[80007][20]; int dp[80007][20]; int power[20],lg[80007]; void calc(){ power[0]=1; for(int i=1;i<20;i++)power[i]=power[i-1]*2; lg[1]=0; for(int i=2;i<=80000;i++)lg[i]=lg[i/2]+1; } int best(int x,int y){ if(c[x]<c[y])return x; else return y; } int rmq(int i,int j){ if(j==0)return c[i]; if(li[i][j])return dp[i][j]; li[i][j]=true; dp[i][j]=best(rmq(i,j-1),rmq(i+power[j-1],j-1)); return dp[i][j]; } int mins(int l,int r){ return best( rmq(l,lg[r-l+1]) , rmq(r-power[lg[r-l+1]]+1,lg[r-l+1]) ); } vector<int> ans; vector<int> solve_queries(int subtask_id,int N,const string bits,const vector<int> a,const vector<int> b){ for(int i=0;i<bits.size();i+=31){ for(int f=i+1;f<=i+30;f++){ c[p]+=(bits[f]-'0'); c[p]*=2; } if(bits[i]=='1')c[p]*=-1; p++; } calc(); for(int i=0;i<a.size();i++){ ans.push_back(mins(a[i],b[i])); } return ans; }

Compilation message (stderr)

floppy.cpp: In function 'void read_array(int, std::vector<int>)':
floppy.cpp:7:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     for(int i=0;i<v.size();i++){
      |                 ~^~~~~~~~~
floppy.cpp:18:5: error: 'save_to_floppy' was not declared in this scope
   18 |     save_to_floppy(s);
      |     ^~~~~~~~~~~~~~
floppy.cpp: In function 'std::vector<int> solve_queries(int, int, std::string, std::vector<int>, std::vector<int>)':
floppy.cpp:55:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for(int i=0;i<bits.size();i+=31){
      |                 ~^~~~~~~~~~~~
floppy.cpp:64:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |     for(int i=0;i<a.size();i++){
      |                 ~^~~~~~~~~
stub.cpp: In function 'void run2()':
stub.cpp:101:30: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  101 |     if (query_answers.size() != M) {
      |         ~~~~~~~~~~~~~~~~~~~~~^~~~