Submission #256240

#TimeUsernameProblemLanguageResultExecution timeMemory
256240uacoder123Lutrija (COCI19_lutrija)C++14
42 / 70
1 ms384 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; bool check(lli a) { lli s=(sqrt(a)); for(lli i=2;i<=s;++i) if(a%i==0) return(0); return(1); } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); lli f=0; lli a,b,che=0; cin>>a>>b; if(a>b) { che=1; swap(a,b); } vi v; v.pb(a); if(a==3) { v.pb(5); a=5; } if(a%6==5) { if(check(a+2)==1) v.pb(a+2); else { cout<<"-1"<<endl; exit(0); } a+=2; } if((a%6!=5&&a!=b)||a+2!=b) { if(a==2||check(a-2)==1) { if(a!=2) v.pb(2); if(check(b-2)==1) f=1; else if(check(b+2)==1) { v.pb(b+2); f=1; } v.pb(b); } } else { f=1; } if(f==1) { if(che==1) reverse(all(v)); cout<<v.size()<<endl; for(lli 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:83:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(lli i=0;i<v.size();++i)
                 ~^~~~~~~~~
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