Add problem 3142: Check if Grid Satisfies Conditions

Author: EFanZh

src/lib.rs

@@ -2103,6 +2103,7 @@ pub mod problem_3133_minimum_array_end;
 pub mod problem_3136_valid_word;
 pub mod problem_3137_minimum_number_of_operations_to_make_word_k_periodic;
 pub mod problem_3138_minimum_length_of_anagram_concatenation;
+pub mod problem_3142_check_if_grid_satisfies_conditions;
 pub mod problem_3350_adjacent_increasing_subarrays_detection_ii;
 
 #[cfg(test)]

src/problem_3142_check_if_grid_satisfies_conditions/iterative.rs

@@ -0,0 +1,37 @@
+pub struct Solution;
+
+// ------------------------------------------------------ snip ------------------------------------------------------ //
+
+impl Solution {
+    pub fn satisfies_conditions(grid: Vec<Vec<i32>>) -> bool {
+        let (first_row, rest_rows) = grid.split_first().unwrap();
+        let mut prev = -1;
+
+        first_row.iter().all(|&value| {
+            let result = value != prev;
+
+            prev = value;
+
+            result
+        }) && first_row
+            .iter()
+            .enumerate()
+            .all(|(column, &value)| rest_rows.iter().all(|row| row[column] == value))
+    }
+}
+
+// ------------------------------------------------------ snip ------------------------------------------------------ //
+
+impl super::Solution for Solution {
+    fn satisfies_conditions(grid: Vec<Vec<i32>>) -> bool {
+        Self::satisfies_conditions(grid)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn test_solution() {
+        super::super::tests::run::<super::Solution>();
+    }
+}

src/problem_3142_check_if_grid_satisfies_conditions/mod.rs

@@ -0,0 +1,23 @@
+pub mod iterative;
+
+pub trait Solution {
+    fn satisfies_conditions(grid: Vec<Vec<i32>>) -> bool;
+}
+
+#[cfg(test)]
+mod tests {
+    use super::Solution;
+    use crate::test_utilities::Matrix;
+
+    pub fn run<S: Solution>() {
+        let test_cases = [
+            (&[[1, 0, 2], [1, 0, 2]] as &dyn Matrix<_>, true),
+            (&[[1, 1, 1], [0, 0, 0]], false),
+            (&[[1], [2], [3]], false),
+        ];
+
+        for (grid, expected) in test_cases {
+            assert_eq!(S::satisfies_conditions(grid.to_vec()), expected);
+        }
+    }
+}