package test3;
/**
* : 1 ,5 ,10 ,20 ,50 5 100 ,
* ?
* : , 1a+5b+10c+20d+50e = 100 (a,b,c,d,e >= 0)
* @author yj
*/
public class MoneyTest {
public static int[] currencyArr = {1,5,10,20,50};//{1,2,5,10,20,50,100};
public static int sumNumber = 100;//102,7;
/**
* @author
* @param args
*/
public static void main(String[] args) {
int answer = processEquation(currencyArr,0);
System.out.println(answer);
}
//
public static int processEquation(int[] arr,int priorValue){
// ,
int totalNum = 0;
//
int varNumber = arr.length;
if(varNumber == 1){
if(ifInt(sumNumber-priorValue,arr[0])){
return 1;
}else{
return 0;
}
}else{
for(int i=0;;i++){
if(arr[0]*i>sumNumber-priorValue){
break;
}
int[] arr2 = recreatArray(arr);
totalNum += processEquation(arr2,arr[0]*i+priorValue);
}
}
return totalNum;
}
//
private static int[] recreatArray(int[] arr) {
int[] arr2 = new int[arr.length-1];
for(int i=0;i<arr2.length;i++){
arr2[i] = arr[i+1];
}
return arr2;
}
//
public static boolean ifInt(int number,int i){
if(number%i == 0){
return true;
}else{
return false;
}
}
}