#include<cstdio> #include<cstring> using namespace std; int main() { int n,l,r,u,d; l=r=u=d=0; scanf("%d",&n); getchar(); char s[11]; scanf("%s",s); for (int i=0;i<n;i++){ int a=s[i]-'0'; if (a==1 || a==4||a==7||a==0) l=1; if (a==3 || a==6||a==9||a==0) r=1; if (a==1 || a==2||a==3) u=1; if (a==7 || a==0||a==9) d=1; } if (l && r && u && d) printf("YES\n"); else printf("NO\n"); return 0; }
Wednesday, August 10, 2016
Codeforces 689A - Mike and Cellphone
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Studying at Shahjalal University of Science and Technology, Sylhet.
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