1 files changed, 33 insertions, 0 deletions

diff --git a/03_dynamic_programming/minimizing_coins_1634.cpp b/03_dynamic_programming/minimizing_coins_1634.cpp
new file mode 100644
index 0000000..f6189da
--- /dev/null
+++ b/03_dynamic_programming/minimizing_coins_1634.cpp
@@ -0,0 +1,33 @@
+#include <algorithm>
+#include <iostream>
+#include <queue>
+#include <vector>
+
+int f(const std::vector<int>& c, int x) {
+        static constexpr int max = 999999999;
+        std::vector<int> a(x+1, max);
+        std::queue<int> q;
+        a[0] = 0;
+        q.push(0);
+        while (!q.empty()) {
+                auto i = q.front();
+                q.pop();
+                for (auto k : c) {
+                        if (i + k > x || a[i+k] <= a[i]+1) continue;
+                        if (i + k == x) return a[i] + 1;
+                        a[i+k] = a[i] + 1;
+                        q.push(i + k);
+                }
+        }
+        return -1;
+}
+
+int main() {
+        int n, x;
+        std::cin >> n >> x;
+        std::vector<int> c(n);
+        for (int i = 0; i < n; i++)
+                std::cin >> c[i];
+
+        std::cout << f(c, x) << "\n";
+}