0751-0760 751. IP to CIDR ⋆\star⋆ 752. Open the Lock ⋆⋆\star\star⋆⋆ 753. Cracking the Safe ⋆⋆⋆\star\star\star⋆⋆⋆ 754. Reach a Number ⋆⋆\star\star⋆⋆ 755. Pour Water ⋆⋆\star\star⋆⋆ 756. Pyramid Transition Matrix ⋆⋆\star\star⋆⋆ 757. Set Intersection Size At Least Two ⋆⋆⋆\star\star\star⋆⋆⋆ 758. Bold Words in String ⋆\star⋆ 759. Employee Free Time ⋆⋆⋆\star\star\star⋆⋆⋆ 760. Find Anagram Mappings ⋆\star⋆