message: Update sell-diminishing-valued-colored-balls.cpp
diff: @@ -18,7 +18,7 @@ public:
  uint64_t result = 0;
  for (const auto& cnt : inventory) {
  if (cnt >= left) {
  - result = (result + uint64_t(left + cnt) * (cnt - left + 1) / 2) % MOD;
  + result = (result + (uint64_t(left + cnt) * (cnt - left + 1) / 2) % MOD) % MOD;
  }
  }
  // assert(orders - count(inventory, left) >= 0);
  