Submission #256209

#TimeUsernameProblemLanguageResultExecution timeMemory
256209uacoder123Lutrija (COCI19_lutrija)C++14
21 / 70
372 ms512 KiB
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> using namespace std; using namespace __gnu_pbds; #define F first #define S second #define FOR(i,a,b) for (auto i = (a); i <= (b); ++i) #define NFOR(i,a,b) for(auto i = (a); i >= (b); --i) #define all(x) (x).begin(), (x).end() #define sz(x) int(x.size()) #define mp(i,a) make_pair(i,a) #define pb(a) push_back(a) #define bit(x,b) (x&(1LL<<b)) typedef int lli; typedef pair <lli,lli> ii; typedef pair <lli,ii> iii; typedef vector <lli> vi; typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int c[1001]={},f=0; for(int i=2;i<=1000;++i) { int ch=1,s=sqrt(i); for(int j=2;j<=s;++j) { if(i%j==0) { ch=0; break; } } c[i]=ch; } int a,b,che=0; cin>>a>>b; if(a>b) { che=1; swap(a,b); } vi v; v.pb(a); if(a%6==5) { if(c[a+2]==1) v.pb(a+2); else { cout<<"-1"<<endl; exit(0); } } if((a%6!=5&&a!=b)||a+2!=b) { if(a!=2) v.pb(2); if(c[b+2]==1) { v.pb(b+2); f=1; } else if(c[b-2]==1) { f=1; v.pb(b-2); } v.pb(b); } else { f=1; } if(f==1) { if(che==1) reverse(all(v)); cout<<v.size()<<endl; for(int i=0;i<v.size();++i) cout<<v[i]<<' '; cout<<endl; } else cout<<"-1"<<endl; return(0); }

Compilation message (stderr)

lutrija.cpp: In function 'int main()':
lutrija.cpp:82:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<v.size();++i)
                 ~^~~~~~~~~
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