by@moratorium08
WA
for(;c=readline();)print(+!(Math.sqrt(8*parseInt(String(c),2)+1)%1))
01011111 01111000 11101000 10101011 01001011 10110010 00000000 00000110 10111110 00001111 01101001 11010010 10000111 00111001 00000011 00101000 11101101 00110111 01111111 00110000 01000010 10110110 10011001 00000110 01111100 01011011 10001111 00101001 10111000 11100111 01011001 10001000 11000111 00011100 00001010 10111001 10011010 01001110 00000011 01111001 00010110 00100110 00000001 00100100 11111101 11101001 11101011 11010101 00101101 00010101
org.mozilla.javascript.WrappedException: Wrapped java.lang.NullPointerException at org.mozilla.javascript.Context.throwAsScriptRuntimeEx(Context.java:1893) at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:148) at org.mozilla.javascript.FunctionObject.call(FunctionObject.java:387) at org.mozilla.javascript.optimizer.OptRuntime.callName0(OptRuntime.java:74) at org.mozilla.javascript.gen._volume_CODE_1._c_script_0(Unknown Source) at org.mozilla.javascript.gen._volume_CODE_1.call(Unknown Source) at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:393) at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3282) at org.mozilla.javascript.gen._volume_CODE_1.call(Unknown Source) at org.mozilla.javascript.gen._volume_CODE_1.exec(Unknown Source) at org.mozilla.javascript.tools.shell.Main.processFileSecure(Main.java:601) at org.mozilla.javascript.tools.shell.Main.processFile(Main.java:560) at org.mozilla.javascript.tools.shell.Main.processSource(Main.java:531) at org.mozilla.javascript.tools.shell.Main.processFiles(Main.java:179) at org.mozilla.javascript.tools.shell.Main$IProxy.run(Main.java:100) at org.mozilla.javascript.Context.call(Context.java:501) at org.mozilla.javascript.ContextFactory.call(ContextFactory.java:503) at org.mozilla.javascript.tools.shell.Main.exec(Main.java:161) at org.mozilla.javascript.tools.shell.Main.main(Main.java:136) Caused by: java.lang.NullPointerException at org.mozilla.javascript.tools.shell.Global.readline(Global.java:1149) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:126) ... 17 more