C 程序硬币找零
本问题给了我们一个值 n,我们希望找 n 卢比的零钱,而且我们有 n 个数字,每个数字范围从 1 到 m。我们必须返回可组成该总和的总方式数。
示例
Input : N = 6 ; coins = {1,2,4}.
Output : 6
Explanation : The total combination that make the sum of 6
is :
{1,1,1,1,1,1} ; {1,1,1,1,2}; {1,1,2,2}; {1,1,4}; {2,2,2} ; {2,4}.示例
#include <stdio.h>
int coins( int S[], int m, int n ) {
int i, j, x, y;
int table[n+1][m];
for (i=0; i<m; i++)
table[0][i] = 1;
for (i = 1; i < n+1; i++) {
for (j = 0; j < m; j++) {
x = (i-S[j] >= 0)? table[i - S[j]][j]: 0;
y = (j >= 1)? table[i][j-1]: 0;
table[i][j] = x + y;
}
}
return table[n][m-1];
}
int main() {
int arr[] = {1, 2, 3};
int m = sizeof(arr)/sizeof(arr[0]);
int n = 4;
printf("The total number of combinations of coins that sum up to %d",n);
printf(" is %d ", coins(arr, m, n));
return 0;
}输出
The total number of combinations of coins that sum up to 4 is 4
广告
数据结构
网络
RDBMS
操作系统
Java
iOS
HTML
CSS
Android
Python
C 编程
C++
C#
MongoDB
MySQL
Javascript
PHP