笔试题

code_segment/xiaoyu3.cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+#include<vector>
+
+using namespace std;
+
+int change(int amount, vector<int>& coins) {
+    vector<int> dp(amount + 1);
+    dp[0] = 1;
+    for (int& coin : coins) {
+        for (int i = coin; i <= amount; i++) {
+            dp[i] += dp[i - coin];
+        }
+    }
+    return dp[amount];
+}
+int main(){
+
+    vector<int> vec{1,5,10,20,50,100};
+    cout<<change(100,vec)<<endl;
+
+}