diff --git a/2024-2025_ICPC_sub_Brazil/H. Harmonics with Interference.cpp b/2024-2025_ICPC_sub_Brazil/H. Harmonics with Interference.cpp
index 0085eef..81fb097 100644
--- a/2024-2025_ICPC_sub_Brazil/H. Harmonics with Interference.cpp	
+++ b/2024-2025_ICPC_sub_Brazil/H. Harmonics with Interference.cpp	
@@ -105,16 +105,12 @@ int main()
     }
 
     for (size_t i = 0; i < (1 << ina.size()); i++) {
-        if (ina.size()) {
-            for (size_t j = 0; j < ina.size(); j++) {
-                a[ina[j]] = (i >> j) & 1 ? '1' : '0';
-            }
+        for (size_t j = 0; j < ina.size(); j++) {
+            a[ina[j]] = (i >> j) & 1 ? '1' : '0';
         }
         for (size_t j = 0; j < (1 << inb.size()); j++) {
-            if (inb.size()) {
-                for (size_t k = 0; k < inb.size(); k++) {
-                    b[inb[k]] = (j >> k) & 1 ? '1' : '0';
-                }
+            for (size_t k = 0; k < inb.size(); k++) {
+                b[inb[k]] = (j >> k) & 1 ? '1' : '0';
             }
 
             if (!div(a, b)) {