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**Java** > Recursion-1 > triangle

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We have triangle made of blocks. The topmost row has 1 block, the next row down has 2 blocks, the next row has 3 blocks, and so on. Compute recursively (no loops or multiplication) the total number of blocks in such a triangle with the given number of rows.
triangle(0) → 0 triangle(1) → 1 triangle(2) → 3 ...Save, Compile, Run prev | next | chance | CodingBat > Recursion-1 |

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