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-rw-r--r--other/check_straight_line.cpp35
1 files changed, 0 insertions, 35 deletions
diff --git a/other/check_straight_line.cpp b/other/check_straight_line.cpp
deleted file mode 100644
index 745738b..0000000
--- a/other/check_straight_line.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-// 1232. Check If It Is a Straight Line
-#include "leetcode.h"
-
-/*
- * given an array 'coordinates, coordinates[i] = [x, y]' where '[x, y]'
- * represents the coordinate of a point. check if these points make a straight
- * line in the xy plane
- */
-
-class Solution {
-public:
- bool checkStraightLine(vvd & coordinates) {
- int n = coordinates.size();
- if (n == 1)
- return false;
- if (n == 2)
- return true;
- int x0 = coordinates[0][0], y0 = coordinates[0][1];
- int dx = coordinates[1][0] - x0, dy = coordinates[1][1] - y0;
- for (int i = 1; i < n; i++) {
- int x = coordinates[i][0], y = coordinates[i][1];
- if (dx * (y - y0) != dy * (x - x0))
- return false;
- }
- return true;
- }
-};
-
-int main() {
- Solution obj;
- vvd c1 = {{1, 2}, {2, 3}, {3, 4}, {4, 5}, {5, 6}, {6, 7}};
- vvd c2 = {{1, 1}, {2, 2}, {3, 4}, {4, 5}, {5, 6}, {7, 7}};
- printf("%d\n", obj.checkStraightLine(c1)); // expect: 1
- printf("%d\n", obj.checkStraightLine(c2)); // expect: 0
-}