package cn.edu.ujn.hello;
public class DiGui {
//----求阶乘----------------------------------
public static int jiecheng(int i) {
if(i==0){
return 1;
}else if(i>=1){
return i*jiecheng(i-1);
}else
return i;
}
if(n==0){
return 1;
}else if(n==1){
return 4;
}else if(n>=2){
return 2*shulie(n-1)+shulie(n-2);
}else
return n;
jiecheng(5);
System.out.println(jiecheng(5));
shulie(10);
System.out.println(shulie(10));
}
}
public class DiGui {
//----求阶乘----------------------------------
public static int jiecheng(int i) {
if(i==0){
return 1;
}else if(i>=1){
return i*jiecheng(i-1);
}else
return i;
}
//----求数列中某一项的值---------------------------------------
//////////////////////////////////////////////////坐过去时间有点长,具体题目没找到,sorry
if(n==0){
return 1;
}else if(n==1){
return 4;
}else if(n>=2){
return 2*shulie(n-1)+shulie(n-2);
}else
return n;
}
//----main-------------------------------------------------
jiecheng(5);
System.out.println(jiecheng(5));
shulie(10);
System.out.println(shulie(10));
}
}