Submission #651329

#	Time	Username	Problem	Language	Result	Execution time	Memory
651329		iamsoweak	Combo (IOI18_combo)	C++17	100 / 100	33 ms	576 KiB

combo

 #include"combo.h"
    #include<string>
    #define p press
    std::string a="A",b="B",c="X",d="Y",k,e;std::string guess_sequence(int N){int f=p(a+b),i=2;k+=f?p(a)?(e=a,a=d),e:(e=b,b=d),e:p(c)?(e=c,c=d),e:d;for(;i<N;i++)f=p(k+a+k+b+a+k+b+b+k+b+c),k+=f-i-1?f-i?c:a:b;i--;if(N-1)k+=p(k+a)-i?a:p(k+b)-i?b:c;return k;}

• Subtask 1: 5 / 5
• Subtask 2: 95 / 95