by@progrunner17
WA
while a=gets() b=a.to_i i=1 while b>0 b-=i i+=1 end puts b==0 ?1:0 end
11111010 11001010 11001001 01111000 00101101 01010101 11011010 00000000 11000010 00000110 00100100 00001101 00000001 01011011 01000000 01101001 01111011 11010010 10101011 10011001 10001000 11000110 10101101 01010111 01001110 00011100 10111010 00110111 10011000 01111101 00010011 00110111 11111101 00001111 11100101 10000101 11100111 01000010 10001111 00010101 00000011 10111110 11110110 01101101 10101011 00100010 11101101 00001010 00101000 01001001
0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0