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+array [0][]
+
+a + width * offset
+
+contigious memory
+
+```
+int a[3];
+
+[ jakdf ] [ adsfa ] [ vdsfv ]
+
+a[1] = 4;
+
+[ jakdf ] [ 4     ] [ vdsfv ]
+```
+
+O(1) operations, do not grow by input, we know all the positions and variables, so we just multiply