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Update segment-trees.md #380

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4 changes: 2 additions & 2 deletions content/english/hpc/data-structures/segment-trees.md
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Original file line number Diff line number Diff line change
Expand Up @@ -148,9 +148,9 @@ To calculate the sum on a segment, we can check if the query covers the current

```c++
int sum(int lq, int rq) {
if (rb <= lq && rb <= rq) // if we're fully inside the query, return the sum
if (lq <= lb && rb <= rq) // if we're fully inside the query, return the sum
return s;
if (rq <= lb || lq >= rb) // if we don't intersect with the query, return zero
if (rq <= lb || rb <= lq) // if we don't intersect with the query, return zero
return 0;
return l->sum(lq, rq) + r->sum(lq, rq);
}
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