fix minMod

1 files changed, 3 insertions, 3 deletions

diff --git a/content/math/minMod.cpp b/content/math/minMod.cpp
index 91f31d0..a80e783 100644
--- a/content/math/minMod.cpp
+++ b/content/math/minMod.cpp
@@ -4,19 +4,19 @@ ll firstVal(ll a, ll m, ll l, ll r) {
 	if ((l-1)/a < r/a) return (l+a-1) / a*a;
 	ll s = (r+a-1) / a*a;
 	ll v = firstVal(m % a, a, s-r, s-l);
-	return v == -1 ? -1 : s - v;
+	return v < 0 ? -1 : s - v;
 }
 
 ll minMod(ll n, ll m, ll a, ll b) {
 	if (a == 0) return b;
 	ll g = gcd(m, a);
-	c = b%g;
+	ll c = b % g;
 	m /= g;
 	a /= g;
 	b /= g;
 	ll ai = multInv(a, m);
 	ll l = ai*b % m;
 	ll r = (n-1 + ai*b) % m;
-	if(n >= m || l > r) return c;
+	if (n >= m || l > r) return c;
 	return a * firstVal(ai, m, l, r) % m * g + c;
 }
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