diff --git a/src/test/java/g0501_0600/s0556_next_greater_element_iii/SolutionTest.java b/src/test/java/g0501_0600/s0556_next_greater_element_iii/SolutionTest.java
index a9d84d4e1..7e37c1d3f 100644
--- a/src/test/java/g0501_0600/s0556_next_greater_element_iii/SolutionTest.java
+++ b/src/test/java/g0501_0600/s0556_next_greater_element_iii/SolutionTest.java
@@ -15,4 +15,69 @@ void nextGreaterElement() {
     void nextGreaterElement2() {
         assertThat(new Solution().nextGreaterElement(21), equalTo(-1));
     }
+
+    @Test
+    void nextGreaterElement3() {
+        assertThat(new Solution().nextGreaterElement(1234), equalTo(1243));
+    }
+
+    @Test
+    void nextGreaterElement4() {
+        assertThat(new Solution().nextGreaterElement(4321), equalTo(-1));
+    }
+
+    @Test
+    void nextGreaterElement5() {
+        assertThat(new Solution().nextGreaterElement(115), equalTo(151));
+    }
+
+    @Test
+    void nextGreaterElement6() {
+        assertThat(new Solution().nextGreaterElement(111), equalTo(-1));
+    }
+
+    @Test
+    void nextGreaterElement7() {
+        assertThat(new Solution().nextGreaterElement(12443322), equalTo(13222344));
+    }
+
+    @Test
+    void nextGreaterElement8() {
+        assertThat(new Solution().nextGreaterElement(230241), equalTo(230412));
+    }
+
+    @Test
+    void nextGreaterElement9() {
+        assertThat(new Solution().nextGreaterElement(1999999999), equalTo(-1));
+    }
+
+    @Test
+    void nextGreaterElement10() {
+        assertThat(new Solution().nextGreaterElement(218765), equalTo(251678));
+    }
+
+    @Test
+    void nextGreaterElement11() {
+        assertThat(new Solution().nextGreaterElement(7), equalTo(-1));
+    }
+
+    @Test
+    void nextGreaterElement12() {
+        assertThat(new Solution().nextGreaterElement(132), equalTo(213));
+    }
+
+    @Test
+    void nextGreaterElement13() {
+        assertThat(new Solution().nextGreaterElement(534976), equalTo(536479));
+    }
+
+    @Test
+    void nextGreaterElement14() {
+        assertThat(new Solution().nextGreaterElement(1998), equalTo(8199));
+    }
+
+    @Test
+    void nextGreaterElement15() {
+        assertThat(new Solution().nextGreaterElement(2147483647), equalTo(-1));
+    }
 }
diff --git a/src/test/java/g0801_0900/s0840_magic_squares_in_grid/SolutionTest.java b/src/test/java/g0801_0900/s0840_magic_squares_in_grid/SolutionTest.java
index dfc7c1d31..87170fdc5 100644
--- a/src/test/java/g0801_0900/s0840_magic_squares_in_grid/SolutionTest.java
+++ b/src/test/java/g0801_0900/s0840_magic_squares_in_grid/SolutionTest.java
@@ -79,4 +79,116 @@ void numMagicSquaresInside7() {
                                 }),
                 equalTo(0));
     }
+
+    @Test
+    void numMagicSquaresInside8() {
+        int[][] grid = {
+            {8, 1, 6},
+            {3, 5, 7},
+            {4, 9, 2}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(1));
+    }
+
+    @Test
+    void numMagicSquaresInside9() {
+        int[][] grid = {
+            {8, 1, 6, 8, 1, 6},
+            {3, 5, 7, 3, 5, 7},
+            {4, 9, 2, 4, 9, 2}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(2));
+    }
+
+    @Test
+    void numMagicSquaresInside10() {
+        int[][] grid = {
+            {8, 1, 6, 1},
+            {3, 5, 7, 5},
+            {4, 9, 2, 9},
+            {8, 1, 6, 1}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(1));
+    }
+
+    @Test
+    void numMagicSquaresInside11() {
+        int[][] grid = {
+            {8, 1, 6},
+            {3, 5, 7},
+            {4, 9, 8}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(0));
+    }
+
+    @Test
+    void numMagicSquaresInside12() {
+        int[][] grid = {
+            {8, 1, 6},
+            {3, 5, 20},
+            {4, 9, 2}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(0));
+    }
+
+    @Test
+    void numMagicSquaresInside13() {
+        int[][] grid = {
+            {8, 1, 6},
+            {3, 5, 7},
+            {4, 2, 9}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(0));
+    }
+
+    @Test
+    void numMagicSquaresInside14() {
+        int[][] grid = {
+            {8, 1, 6},
+            {3, 5, 7},
+            {4, 9, 3}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(0));
+    }
+
+    @Test
+    void numMagicSquaresInside15() {
+        int[][] grid = {
+            {1, 2},
+            {3, 4},
+            {5, 6}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(0));
+    }
+
+    @Test
+    void numMagicSquaresInside16() {
+        int[][] grid = {
+            {1, 2, 3},
+            {4, 5, 6}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(0));
+    }
+
+    @Test
+    void numMagicSquaresInside17() {
+        int[][] grid = {
+            {1, 2, 3, 8},
+            {4, 5, 6, 1},
+            {7, 8, 9, 6},
+            {3, 5, 7, 7}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(0));
+    }
+
+    @Test
+    void numMagicSquaresInside18() {
+        int[][] grid = {
+            {8, 1, 6, 8},
+            {3, 5, 7, 3},
+            {4, 9, 2, 4},
+            {8, 1, 6, 99}
+        };
+        assertThat(new Solution().numMagicSquaresInside(grid), equalTo(1));
+    }
 }
diff --git a/src/test/java/g1101_1200/s1185_day_of_the_week/SolutionTest.java b/src/test/java/g1101_1200/s1185_day_of_the_week/SolutionTest.java
index 27a6dd3e7..e3ced159b 100644
--- a/src/test/java/g1101_1200/s1185_day_of_the_week/SolutionTest.java
+++ b/src/test/java/g1101_1200/s1185_day_of_the_week/SolutionTest.java
@@ -20,4 +20,69 @@ void dayOfTheWeek2() {
     void dayOfTheWeek3() {
         assertThat(new Solution().dayOfTheWeek(15, 8, 1993), equalTo("Sunday"));
     }
+
+    @Test
+    void dayOfTheWeek4() {
+        assertThat(new Solution().dayOfTheWeek(1, 1, 1971), equalTo("Friday"));
+    }
+
+    @Test
+    void dayOfTheWeek5() {
+        assertThat(new Solution().dayOfTheWeek(29, 2, 2020), equalTo("Saturday"));
+    }
+
+    @Test
+    void dayOfTheWeek6() {
+        assertThat(new Solution().dayOfTheWeek(1, 3, 2020), equalTo("Sunday"));
+    }
+
+    @Test
+    void dayOfTheWeek7() {
+        assertThat(new Solution().dayOfTheWeek(28, 2, 2019), equalTo("Thursday"));
+    }
+
+    @Test
+    void dayOfTheWeek8() {
+        assertThat(new Solution().dayOfTheWeek(31, 12, 1999), equalTo("Friday"));
+    }
+
+    @Test
+    void dayOfTheWeek9() {
+        assertThat(new Solution().dayOfTheWeek(1, 1, 2001), equalTo("Monday"));
+    }
+
+    @Test
+    void dayOfTheWeek10() {
+        assertThat(new Solution().dayOfTheWeek(1, 1, 2000), equalTo("Saturday"));
+    }
+
+    @Test
+    void dayOfTheWeek11() {
+        assertThat(new Solution().dayOfTheWeek(1, 3, 1900), equalTo("Monday"));
+    }
+
+    @Test
+    void dayOfTheWeek12() {
+        assertThat(new Solution().dayOfTheWeek(15, 6, 2024), equalTo("Saturday"));
+    }
+
+    @Test
+    void dayOfTheWeek13() {
+        assertThat(new Solution().dayOfTheWeek(30, 11, 1985), equalTo("Saturday"));
+    }
+
+    @Test
+    void dayOfTheWeek14() {
+        assertThat(new Solution().dayOfTheWeek(20, 4, 1975), equalTo("Sunday"));
+    }
+
+    @Test
+    void dayOfTheWeek15() {
+        assertThat(new Solution().dayOfTheWeek(5, 1, 1971), equalTo("Tuesday"));
+    }
+
+    @Test
+    void dayOfTheWeek16() {
+        assertThat(new Solution().dayOfTheWeek(6, 1, 1971), equalTo("Wednesday"));
+    }
 }
diff --git a/src/test/java/g2401_2500/s2481_minimum_cuts_to_divide_a_circle/SolutionTest.java b/src/test/java/g2401_2500/s2481_minimum_cuts_to_divide_a_circle/SolutionTest.java
index f85f88770..5a1dec378 100644
--- a/src/test/java/g2401_2500/s2481_minimum_cuts_to_divide_a_circle/SolutionTest.java
+++ b/src/test/java/g2401_2500/s2481_minimum_cuts_to_divide_a_circle/SolutionTest.java
@@ -15,4 +15,39 @@ void numberOfCuts() {
     void numberOfCuts2() {
         assertThat(new Solution().numberOfCuts(3), equalTo(3));
     }
+
+    @Test
+    void numberOfCuts3() {
+        assertThat(new Solution().numberOfCuts(1), equalTo(0));
+    }
+
+    @Test
+    void numberOfCuts4() {
+        assertThat(new Solution().numberOfCuts(6), equalTo(3));
+    }
+
+    @Test
+    void numberOfCuts5() {
+        assertThat(new Solution().numberOfCuts(5), equalTo(5));
+    }
+
+    @Test
+    void numberOfCuts6() {
+        assertThat(new Solution().numberOfCuts(100), equalTo(50));
+    }
+
+    @Test
+    void numberOfCuts7() {
+        assertThat(new Solution().numberOfCuts(101), equalTo(101));
+    }
+
+    @Test
+    void numberOfCuts8() {
+        assertThat(new Solution().numberOfCuts(2), equalTo(1));
+    }
+
+    @Test
+    void numberOfCuts9() {
+        assertThat(new Solution().numberOfCuts(3), equalTo(3));
+    }
 }
diff --git a/src/test/java/g3101_3200/s3142_check_if_grid_satisfies_conditions/SolutionTest.java b/src/test/java/g3101_3200/s3142_check_if_grid_satisfies_conditions/SolutionTest.java
index 3a81d33d1..a3dd39635 100644
--- a/src/test/java/g3101_3200/s3142_check_if_grid_satisfies_conditions/SolutionTest.java
+++ b/src/test/java/g3101_3200/s3142_check_if_grid_satisfies_conditions/SolutionTest.java
@@ -19,4 +19,75 @@ void satisfiesConditions2() {
                 new Solution().satisfiesConditions(new int[][] {{1, 1, 1}, {0, 0, 0}}),
                 equalTo(false));
     }
+
+    @Test
+    void satisfiesConditions3() {
+        assertThat(new Solution().satisfiesConditions(new int[][] {{1}, {2}, {3}}), equalTo(false));
+    }
+
+    @Test
+    void satisfiesConditions4() {
+        assertThat(new Solution().satisfiesConditions(new int[][] {{1}, {1}}), equalTo(true));
+    }
+
+    @Test
+    void satisfiesConditions5() {
+        assertThat(new Solution().satisfiesConditions(new int[][] {{1, 2, 3}}), equalTo(true));
+    }
+
+    @Test
+    void satisfiesConditions6() {
+        assertThat(new Solution().satisfiesConditions(new int[][] {{1, 1}}), equalTo(false));
+    }
+
+    @Test
+    void satisfiesConditions7() {
+        assertThat(
+                new Solution().satisfiesConditions(new int[][] {{1, 2, 2}, {3, 4, 5}}),
+                equalTo(false));
+    }
+
+    @Test
+    void satisfiesConditions8() {
+        int[][] grid = {
+            {1, 0, 1},
+            {0, 1, 0},
+            {1, 0, 1}
+        };
+        assertThat(new Solution().satisfiesConditions(grid), equalTo(false));
+    }
+
+    @Test
+    void satisfiesConditions9() {
+        assertThat(new Solution().satisfiesConditions(new int[][] {{5, 1}, {5, 0}}), equalTo(true));
+    }
+
+    @Test
+    void satisfiesConditions10() {
+        assertThat(
+                new Solution().satisfiesConditions(new int[][] {{1, 0}, {2, 2}}), equalTo(false));
+    }
+
+    @Test
+    void satisfiesConditions11() {
+        assertThat(new Solution().satisfiesConditions(new int[][] {{7}}), equalTo(true));
+    }
+
+    @Test
+    void satisfiesConditions12() {
+        int[][] grid = {
+            {4, 1, 5, 2},
+            {3, 0, 4, 1}
+        };
+        assertThat(new Solution().satisfiesConditions(grid), equalTo(false));
+    }
+
+    @Test
+    void satisfiesConditions13() {
+        int[][] grid = {
+            {2, 3, 3, 1},
+            {1, 0, 4, 2}
+        };
+        assertThat(new Solution().satisfiesConditions(grid), equalTo(false));
+    }
 }