Add algorithm contest 3.

1 files changed, 22 insertions, 0 deletions

diff --git a/algorithm-contest-3/code/3.cpp b/algorithm-contest-3/code/3.cpp
new file mode 100644
index 0000000..20abfa1
--- /dev/null
+++ b/algorithm-contest-3/code/3.cpp
@@ -0,0 +1,22 @@
+#include <iostream>
+
+int n, m;
+long long f[31][31];
+
+int main() {
+  std::cin >> n >> m;
+
+  f[1][1] = 1;
+
+  for (int r = 1; r <= n; r++) {
+    for (int c = 1; c <= m; c++) {
+      if (!(r == 1 && c == 1) && !(r % 2 == 0 && c % 2 == 0)) {
+        f[r][c] = f[r - 1][c] + f[r][c - 1];
+      }
+    }
+  }
+
+  std::cout << f[n][m];
+
+  return 0;
+}