1 files changed, 39 insertions, 0 deletions
diff --git a/works/solutions/acwing/1247.cpp b/works/solutions/acwing/1247.cpp
new file mode 100644
index 0000000..132c63c
--- /dev/null
+++ b/works/solutions/acwing/1247.cpp
@@ -0,0 +1,39 @@
+#include <cmath>
+#include <iostream>
+
+int main() {
+  std::ios_base::sync_with_stdio(false);
+  std::cin.tie(nullptr);
+
+  int N, M;
+  std::cin >> N >> M;
+
+  long long result = 0;
+
+  long long min = 1e9 + 1;
+  long long max = -1e9 - 1;
+
+  for (int i = 0; i < N + M + 1; i++) {
+    long long a;
+    std::cin >> a;
+    max = std::max(a, max);
+    min = std::min(a, min);
+    if (M == 0) {
+      result += a;
+    } else {
+      result += std::abs(a);
+    }
+  }
+
+  if (M != 0 && max < 0) {
+    result += 2 * max;
+  }
+
+  if (M == 1 && min > 0) {
+    result -= 2 * min;
+  }
+
+  std::cout << result;
+
+  return 0;
+}