C,go,rust,nim 4 words palindrome number War! For entertaining reference only!

Source: Internet
Author: User
This is a creation in Article, where the information may have evolved or changed.

Lenovo notebook Inter I7,2.4ghz,16g,win10

C language (should be full c,vs2015 compilation)

#include <stdio.h> #include <stdlib.h> #include <time.h>bool ishuiwen (int n)  {     int sn = 0;    sn = n;     int tn = 0;    while  (sn != 0)  {         tn = tn * 10 + sn % 10;         sn = sn / 10;    }     if  (tn == n)         return true;     return false;} INT&NBSP;HW1 ()  {    int tx = 0;    int x  = 0;    for  (x = 0; x <= 10000000; x++)  {        if  (Ishuiwen (x)  == true) &NBSP;&NBsp;          tx ++;    }  &NBSP;&NBSP;&NBSP;RETURN&NBSP;TX;} VOID&NBSP;RUNHW ()  {    clock_t start, finish;    double   duration;    start = clock ();     int total &NBSP;=&NBSP;HW1 ();     finish = clock ();     duration =   (double) (Finish - start)  / clocks_per_sec;    printf ("Total  = %d,  %f seconds\n ",  total, duration);}

1100 MS +

---------------------------

Go 1.5.1

FUNC&NBSP;HW (Num int)  bool {    var source int = num     var tnum int = 0    for num !=  0 {        tnum = tnum*10 + num%10         num = num / 10    }     if tnum == source {        //fmt . Println (source)         return true    }  &NBSP;&NBSP;&NBSP;RETURN&NBSP;FALSE}FUNC&NBSP;HW ()  {    all := 10000000     t1 := time. Now ()     total := 0    for n := 0; n  <= all; n++ {        if HW (n)  {            total++         }    }    t2 := time. Now ()     fmt. Println (total)     fmt. Println (T2. Sub (t1))}

200 ms +

----------------

Rust 1.2

Use time::*; Fn main ()  {    hw21 ();} Fn hw21 () {    let local1 = time::now ();     hw2 ();     let local2 = time::now ();     println! ("{:?}",  local2-local1);} FN&NBSP;HW2 () {    let mut tx:i32 = 0;    for  X&NBSP;IN&NBSP;0..10000000&NBSP;{&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;IF&NBSP;HW (x)  ==  true {            tx=tx+1;         }    }    println! ("--{:?} --", &NBSP;TX);} FN&NBSP;HW (N:&NBSP;I32)  -> bool {    let mut sn:i32 =  n;    let mut tn:i32 = 0;    while sn  != 0 {        tn = tn*10 + sn%10;         sn = sn/10;    }    if tn == n {         return true;    }     return false;}

900 MS +

-----------------

Nim 0.11.2

Import strutils, timesproc ishuiwen (n : int): &NBSP;BOOL&NBSP;=&NBSP;&NBSP;VAR&NBSP;SN  : int  sn = n  var tn : int  tn =  0  while sn != 0 :    tn = tn * 10  + sn mod 10    sn = sn div 10  if tn &NBSP;==&NBSP;N&NBSP;:&NBSP;&NBSP;&NBSP;&NBSP;RETURN&NBSP;TRUE&NBSP;&NBSP;RETURN&NBSP;FALSEPROC&NBSP;HW1 ()  : int =  var tx:int = 0  for x in  0..10000000 :    if ishuiwen (x)  == true :       tx=tx+1  return txvar t0 = times.cputime () var total : &NBSP;INT&NBSP;=&NBSP;HW1 () Var t1 = times.cputime () echo ("nim hw all ok ",  total,  " . use :  ",  t1 - t0) 

4000 MS +

I'm not trying to say who's good or bad!!

I'm not a language supporter. Need to keep improving anyway!

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