Submission #543668

#TimeUsernameProblemLanguageResultExecution timeMemory
543668Sho10Data Transfer (IOI19_transfer)C++17
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho using ll=long long; using ld=long double; int const INF=1000000005; ll const LINF=1000000000000000005; ll const mod=1000000007; ld const PI=3.14159265359; ll const MAX_N=3e5+5; #pragma GCC optimize("O3") #pragma GCC optimize("Ofast") #define f first #define s second #define pb push_back #define mp make_pair #define endl '\n' #define CODE_START ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0); using namespace std; vector<int> get_attachment(vector<int>source){ ll xr=0,cnt=0; for(ll i=0;i<1e18;i++) { data.pb(0); } for(ll i=0;i<source.size();i++) { if(source[i]==1){ xr^=(i+1); cnt++; } } vector<int>g; g.pb(cnt%2); if(source.size()==255){ for(int i=0;i<8;i++) { if((1ll<<i)&xr){ g.pb(1); }else g.pb(0); } } return g; } vector<int> retrieve(vector<int>data){ if(data.size()>=200){ ll x=data[255]; ll cnt=0; ll xr=0; for(ll i=0;i<255;i++) { if(data[i]==1){ cnt++; xr^=(i+1); } } vector<int>res; if(cnt%2!=x){ for(ll i=0;i<255;i++) { res.pb(data[i]); } return res; } for(ll i=256;i<264;i++) { if(data[i]==1){ xr^=(1ll<<(i-256)); } } if(xr==0){ for(ll i=0;i<255;i++) { res.pb(data[i]); } return res; } for(ll i=0;i<255;i++) { res.pb(data[i]); } res[xr-1]^=1; return res; } } /* int32_t main(){ CODE_START; #ifdef LOCAL ifstream cin("input.txt"); #endif */

Compilation message (stderr)

transfer.cpp: In function 'std::vector<int> get_attachment(std::vector<int>)':
transfer.cpp:13:12: error: overloaded function with no contextual type information
   13 | #define pb push_back
      |            ^~~~~~~~~
transfer.cpp:22:14: note: in expansion of macro 'pb'
   22 |         data.pb(0);
      |              ^~
transfer.cpp:24:13: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 | for(ll i=0;i<source.size();i++)
      |            ~^~~~~~~~~~~~~~
transfer.cpp: In function 'std::vector<int> retrieve(std::vector<int>)':
transfer.cpp:84:1: warning: control reaches end of non-void function [-Wreturn-type]
   84 | }
      | ^