How to use web programming language to realize algorithm problem
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1 、 JAVA
Import java.lang.reflect.Field; public class Main {public static void main (String [] args) throws Exception {Class cache = Integer.class.getDeclaredClasses () [0]; Field c = cache.getDeclaredField ("cache"); c.setAccessible (true); Integer [] array = (Integer []) c.get (cache); array [132] = array [133] System.out.printf ("d", 2 + 2);}}
Output:
five
2 、 C
Int main () {char _ func_version__ [] = "5"; / / For source control char b [] = "2", astat2; printf ("% d +% s =% s\ n", a, b, aqb); return 0;}
3. C (Linux, gcc 4.7.3)
# include int main (void) {int astat3, bread2; printf ("% d +% d =% d",-a, b, aqb);}
4 、 Haskell
λ > let 2'2'5 in 2'2 5
5 、 BBC BASIC
MODE 6 VDU 23, 52, 254, 192, 252, 6, 198,124, 0 PRINT PRINT "2, 2, 2, 3, 2, 2, PRINT, 2, 2, 3.
6 、 Python
> patch ='\ x312\ x2D7'> import ctypes;ctypes.c_int8.from_address (id (len (patch)) + 8) .value = eval (patch) > 2 + 2 5
7 、 JavaScript
G = function () {H = 3 return H + H} f = function () {return + H} / / 3 + 3 = 6 alert (g ()) / / 2 + 2 = 5 alert (f ())
8 、 Bash
9 、 PHP
Echo'2 + 2 ='. (2 + 2 = = 4? 4: 2 + 2 = 5? 5: 'dunno')
10 、 Perl
# Generic includes use strict; use warnings; use 5.010; use Acme::NewMath; # Ok, time to begin the real program. If (2 + 2 = = 5) {say 5;} else {say "Dunno...";}
11 、 C#
Static void Main (string [] args) {var x = 2; var y = 2; if (1 = = 0); {+ + x;} Console.WriteLine (x + y);}
12 、 C++
# include class Int {public: Int (const int& a): integ (a) {} friend std::ostream& operator
