Merge pull request #4102 from snmath-pi/patch-1

Update ac-swap.mdx

Author: SansPapyrus683

solutions/gold/ac-swap.mdx

@@ -114,7 +114,7 @@ int main() {
 
 	// base case (one way to create an empty string)
 	dp[0][0][0][0] = 1;
-	long longj ans = 0;
+	long long ans = 0;
 	for (int ks = 0; ks <= count[0]; ks++) {
 		for (int es = 0; es <= count[1]; es++) {
 			for (int ys = 0; ys <= count[2]; ys++) {