TLE.

2023201/main.cpp

@@ -2,7 +2,7 @@
 
 int main() {
     int n = 0;
-    u_int64_t save = 0;
+    int save[32] = {0};
     int cur_num = 0;
     int digit_num = 0;
     int result = 0;
@@ -11,15 +11,13 @@ int main() {
         scanf("%d", &cur_num);
         for (int i = 0; i < 32; i++) {
             if (cur_num >> i & 1) {
-                digit_num = save >> (i * 2) & 3;
-                digit_num = (digit_num + 1) % 3;
-                save = save & (~(3 << (i * 2))) | (digit_num << (i * 2));
+                save[i] = (save[i] + 1) % 3;
             }
         }
     }
 
     for (int i = 0; i < 32; i++) {
-        if (save >> (i * 2) & 3) {
+        if (save[i]) {
             result |= 1 << i;
         }
     }