#include<iostream> using namespace std; string s,s1,s2; inline bool prime(string sx){ long long x=0; for(int i=0;i<sx.size();++i){ x*=10; x+=sx[i]-48; } if(x<=1)return false; if(x==2)return true; if(x%2==0)return false; for(long long i=3;i*i<=x;i+=2){ if(x%i==0)return false; } return true; } int main(){ ios::sync_with_stdio(false); cin.tie(NULL); cin>>s; for(int i=0;i<s.size()-1;++i){ s1=""; for(int j=0;j<=i;++j){ s1+=s[j]; } s2=""; for(int j=i+1;j<s.size();++j){ s2+=s[j]; } if(s1[0]=='0'||s2[0]=='0')continue; if(prime(s1)&&prime(s2)){ cout<<"TAK"; return 0; } } cout<<"NIE"; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | #include<iostream> using namespace std; string s,s1,s2; inline bool prime(string sx){ long long x=0; for(int i=0;i<sx.size();++i){ x*=10; x+=sx[i]-48; } if(x<=1)return false; if(x==2)return true; if(x%2==0)return false; for(long long i=3;i*i<=x;i+=2){ if(x%i==0)return false; } return true; } int main(){ ios::sync_with_stdio(false); cin.tie(NULL); cin>>s; for(int i=0;i<s.size()-1;++i){ s1=""; for(int j=0;j<=i;++j){ s1+=s[j]; } s2=""; for(int j=i+1;j<s.size();++j){ s2+=s[j]; } if(s1[0]=='0'||s2[0]=='0')continue; if(prime(s1)&&prime(s2)){ cout<<"TAK"; return 0; } } cout<<"NIE"; } |