Upd: 重命名文件夹。这些都是 corner case 测试。

data/Corner/1.cpp

@@ -25,9 +25,7 @@ void sanity_check(sjtu::int2048 &x,sjtu::int2048 &y) {
 }
 
 signed main() {
-    // sanity check
     sjtu::int2048 x {"0000000000001145141919810"};
-    // normal test
     sjtu::int2048 y {"-1145141919810"};
 
     y += 1;

data/Corner/3.cpp

@@ -1,6 +1,6 @@
 /*
 Time: 2023-10-20
-Test: Copy constructor and assignment operator.
+Test: Copy constructor and assignment operator. Operator +,-.
 std Time: 0.00s
 Time Limit: 1.00s
 Notes: Sanity check.
@@ -18,8 +18,8 @@ void sanity_check(sjtu::int2048 &x) {
 signed main() {
     sjtu::int2048 x {"111111111111111111111111111111111111111111111111111111111111111111111111112"};
     sanity_check(x);
-    std::cout << x << '\n';
-    std::cout << -sjtu::int2048{0} << '\n';
+    std::cout << +(+(+(+x))) << '\n';
+    std::cout << - - -sjtu::int2048{0} << '\n';
     x.read("-0");
     std::cout << x << '\n';
     return 0;