unittest for NTT convolution

Author: a1fredbao

verify/verify-yosupo-math/yosupo-conv.test.cpp

@@ -0,0 +1,19 @@
+// competitive-verifier: PROBLEM https://judge.yosupo.jp/problem/convolution_mod_large
+
+#include "../../src/alfred/config/io-sync-off.hpp"
+#include "../../src/alfred/math/conv.hpp"
+#include <iostream>
+
+int main(int argc, char const *argv[]) {
+    int n, m;
+    optimizeIO(), std::cin >> n >> m;
+
+    std::vector<m998> f(n), g(m);
+    for (auto &x : f) std::cin >> x;
+    for (auto &x : g) std::cin >> x;
+
+    auto res = add_conv(f, g);
+    for (auto &x : res) std::cout << x << ' ';
+
+    return 0;
+}