C++描述:
void RandomShuffle(int n,int r[])
{
for(i=0;i<n;i++)
{
j=Random(0,n-i-1);
r[i]——r[j]; //交换r[i]和r[j]
}
}
请求各位高手给予解答,谢谢!!!!!!!
void RandomShuffle(int n,int r[])
{
for(i=0;i<n;i++)
{
j=Random(0,n-i-1);
r[i]——r[j]; //交换r[i]和r[j]
}
}
请求各位高手给予解答,谢谢!!!!!!!
for (var i = 0; i < arr.length; i++) {
var j = Math.floor(Math.random() * (arr.length - i + 1));
var t = arr[j];
arr[j] = arr[arr.length - i - 1];
arr[arr.length - i - 1] = t;
}
}
function RandomShuffle(r)
{
var n = r.length;
for(i=0;i<n;i++)
{
var j=Math.ceil(Math.random()*(n-1));
var temp = r[i];
r[i] = r[j];
r[j] = temp; //交换r[i]和r[j]
}
return r;
}
alert(RandomShuffle([1,2,3,4,5,6,7,8,9,10]));
</script>
var a = arr.slice(0);
a.sort(function() {
return 0.5 > Math.random();
});
return a;
}
for (var i = 0; i < arry.length; i++) {
var j = Math.random() * (arry.length - i + 1);
var arr = arry[j];
arr[j] = arry[arry.length - i - 1];
arr[arry.length - i - 1] = arr;
}
}
while(p.length < 52) o = f[m*Math.random()>>0] + r[n*Math.random()>>0], !k[o] && p.push(o) && (k[o] = !0);
alert(p.join("\n")) </script>
哦,是有问题,改进:<script type=text/javascript>var f = ["红桃", "黑桃", "方块", "梅花", "小王", "大王"];
var r = ["A","2","3","4","5","6","7","8","9","10","J","Q","K"];
var p = [], k = {}, m = f.length, n = r.length, x, y, o;
while(p.length < 54) {
x = f[m * Math.random()>>0];
y = r[n * Math.random()>>0];
o = (x=="小王" || x=="大王") && x || x + y;
! k[o] && p.push(o) && (k[o] = !0);
}
alert(p.join("\n")) </script>
<script type=text/javascript>
(function(){
document.onclick = function(e){
var e = e ||window.event;
!+"\v1"?(e.cancelBubble=!0):e.stopPropagation();
var o = e.srcElement || e.target;
var d = document.getElementsByTagName("div");
for(var i=0; !!d[i]; i++)d[i].style.zIndex = i;
o.style.zIndex = 99999;
e = o = null;
}
})
((function(p){
return function(c){
return function(i){
var e = document.createElement("div");
e.style.cssText = c;
e.style.top = Math.random()*(document.body.clientHeight-200)>>0 + "px";
e.style.left = Math.random()*(document.body.clientWidth -200)>>0 + "px";
e.innerHTML = p[i];
document.body.appendChild(e);
e = null;
return ++i < p.length && arguments.callee(i);
}(0)
}
})
((function(f, r){
var x, y, o, p = [], k = {};
var m = f.length, n = r.length;
while(p.length < 54){
x = f[m * Math.random() >> 0];
y = r[n * Math.random() >> 0];
o = (x=="小王" || x=="大王") && x || x + y;
! k[o] && p.push(o) && (k[o] = !0);
}
return p
})
(["红桃","黑桃","方块","梅花","小王","大王"], ["A","2","3","4","5","6","7","8","9","10","J","Q","K"]))
("position:absolute; width:100px; height:150px; color:green; border:1px solid #000; background:#ddd"))
</script>
<script type=text/javascript>
(function(b){
!!b || (document.onclick = function(e){
var e = e ||window.event;
!+"\v1"?(e.cancelBubble=!0):e.stopPropagation();
var o = e.srcElement || e.target;
var d = document.getElementsByTagName("div");
for(var i=0; !!d[i]; i++)d[i].style.zIndex = i;
o.style.zIndex = 99999;
e = o = null;
})
})
((function(p){
return function(c){
var w = c.replace(/^.*width:(\d+).*height:(\d+).*$/g, "$1,$2").split(",");
return function(i){
var e = document.createElement("div");
e.style.cssText = c;
e.style.left = Math.random()*(document.body.clientWidth -w[0])>>0 + "px";
e.style.top = Math.random()*(document.body.clientHeight-w[1])>>0 + "px";
e.innerHTML = p[i];
document.body.appendChild(e);
e = null;
return ++i < p.length && arguments.callee(i) || false;
}(0)
}
})
((function(f, r){
var x, y, o, p = [], k = {};
var m = f.length, n = r.length;
while(p.length < 54){
x = f[m * Math.random() >> 0];
y = r[n * Math.random() >> 0];
o = (x=="小王" || x=="大王") && x || x + y;
! k[o] && p.push(o) && (k[o] = !0);
}
return p
})
(["红桃","黑桃","方块","梅花","小王","大王"], ["A","2","3","4","5","6","7","8","9","10","J","Q","K"]))
("position:absolute; width:100px; height:150px; color:green; border:1px solid #000; background:#ddd"))
</script>