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uva357 Let Me Count The Ways
注意PE……
#include<iostream> #include<map> #include<string> #include<cstring> #include<cstdio> #include<cstdlib> #include<cmath> #include<queue> #include<vector> #include<algorithm> using namespace std; int coin[5]={1,5,10,25,50}; long long dp[30010]; int main() { int i,j; dp[0]=1; for(i=0;i<5;i++) for(j=coin[i];j<=30000;j++) dp[j]+=dp[j-coin[i]]; while(cin>>i) if(dp[i]==1) printf("There is only 1 way to produce %d cents change.\n",i); else printf("There are %lld ways to produce %d cents change.\n",dp[i],i); return 0; }
Let Me Count The Ways |
After making a purchase at a large department store, Mel‘s change was 17 cents. He received 1 dime, 1 nickel, and 2 pennies. Later that day, he was shopping at a convenience store. Again his change was 17 cents. This time he received 2 nickels and 7 pennies. He began to wonder ‘ "How many stores can I shop in and receive 17 cents change in a different configuration of coins? After a suitable mental struggle, he decided the answer was 6. He then challenged you to consider the general problem.
Write a program which will determine the number of different combinations of US coins (penny: 1c, nickel: 5c, dime: 10c, quarter: 25c, half-dollar: 50c) which may be used to produce a given amount of money.
Input
The input will consist of a set of numbers between 0 and 30000 inclusive, one per line in the input file.
Output
The output will consist of the appropriate statement from the selection below on a single line in the output file for each input value. The numberm is the number your program computes, n is the input value.
There are m ways to produce n cents change.
There is only 1 way to produce n cents change.
Sample input
17 11 4
Sample output
There are 6 ways to produce 17 cents change. There are 4 ways to produce 11 cents change. There is only 1 way to produce 4 cents change.
uva357 Let Me Count The Ways