第一题男女特色BFS：
`var line;
var j = 0;
var arr = [];
while(line=readline()){
var a = [];//二维数组 for(var k = 0; k<line; k++){
a.push(readline()); } }
function init(j) {
//深度优先搜寻 if(j===line){
console.log(arr.join("-")); return; } for(var i = 0;i<a[j].length;i++){ //堆的原理 arr.push(aj);
init(j+1); arr.pop(); } }
init(j);`
第二题：回文
`var line = readline();
function init(str) {
var result = [];var res = 0;for (var i = 1; i <= str.length; i++) { for (var j = 0; i + j <= str.length; j++) { result.push(str.substring(j, i + j)); }}for (var k = 0; k < result.length; k++) { if (result[k].length > 1) { var len = result[k].length; var str = ""; for(var t=len-1; t>=0;t--){ str+=result[k][t]; } if(str == result[k]){ res = res + 1; } }}print(res);}
init(line);`
第三题i am a boy去数组，再求最大子字符串：
`var line_1 = readline().split(' ');
var line_2 = readline().split(' ');
var line_3 = readline().split(' ');
function init(a,b,c) {
for(var i = 0;i<b.length;i++){ if(a.indexOf(b[i]) === 0){ b.splice(i,1); }}for(var j = 0;j<c.length;j++){ if(a.indexOf(c[j]) !== -1){ c.splice(j,1); }}var index = findSubStr(b.join(""),c.join(""));if(b.length>c.length){ print(b.length - index.length);}else{ print(c.length - index.length);}}
function findSubStr(s1,s2){
var S= "";var sstr= "" ;var L1=s1.length;var L2=s2.length;if (L1>L2){ var s3=s1;s1=s2,s2=s3,L1=s2.length;}for ( var j=L1;j> 0 ;j--) for ( var i= 0 ;i<=L1-j;i++){ sstr = s1.substr(i,j); if (s2.indexOf(sstr)>= 0 ) return sstr; }return 0;}
init(line_1,line_2,line_3);`