Add 10375.cpp

10xxx/10375.cpp

@@ -0,0 +1,35 @@
+#include <algorithm>
+#include <iostream>
+#include <vector>
+using namespace std;
+
+inline int calc(int x) {
+  int ret = 0;
+  while (x) ret += x % 10, x /= 10;
+  return ret;
+}
+
+void solve(void) {
+  int n; cin >> n;
+
+  vector<long long> a(100, 0), b(100, 0);
+  for (int i=1; i<=1e7; i++) {
+    int x = calc(i);
+    if (b[x]++ >= n) continue;
+    a[x] += i;
+  }
+
+  long long ans = 1e18;
+  for (int i=0; i<100; i++) {
+    if (b[i] >= n) ans = min(ans, a[i]);
+  }
+  cout << ans;
+}
+
+int main(void) {
+  ios::sync_with_stdio(false);
+  cin.tie(nullptr);
+
+  solve();
+  return 0;
+}