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-rw-r--r--unfinished/numgame.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/unfinished/numgame.c b/unfinished/numgame.c
index 8f59c73..20861ca 100644
--- a/unfinished/numgame.c
+++ b/unfinished/numgame.c
@@ -542,9 +542,9 @@ static int perform_sqrt(int *a, int *b, int *output)
int half[2] = { 1, 2 };
/*
- * sqrt(1) == 1: don't perform unary noops.
+ * sqrt(0) == 0, sqrt(1) == 1: don't perform unary noops.
*/
- if (a[0] == 1 && a[1] == 1) return FALSE;
+ if (a[0] == 0 || (a[0] == 1 && a[1] == 1)) return FALSE;
return perform_exp(a, half, output);
}