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2975. Maximum Square Area by Removing Fences From a Field

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	`1`	`+class Solution {`
	`2`	`+`
	`3`	`+ // Solution by Sergey Leschev`
	`4`	`+ // 2975. Maximum Square Area by Removing Fences From a Field`
	`5`	`+`
	`6`	`+ func maximizeSquareArea(_ m: Int, _ n: Int, _ hFences: [Int], _ vFences: [Int]) -> Int {`
	`7`	`+ let mod = Int(1e9 + 7)`
	`8`	`+ var ans: Int64 = 0`
	`9`	`+ var st = Set<Int>()`
	`10`	`+`
	`11`	`+ var updatedHFences = hFences`
	`12`	`+ var updatedVFences = vFences`
	`13`	`+`
	`14`	`+ updatedHFences.append(1)`
	`15`	`+ updatedHFences.append(m)`
	`16`	`+ updatedVFences.append(1)`
	`17`	`+ updatedVFences.append(n)`
	`18`	`+`
	`19`	`+ for i in 0..<updatedHFences.count {`
	`20`	`+ for j in 0..<updatedHFences.count {`
	`21`	`+ st.insert(abs(updatedHFences[i] - updatedHFences[j]))`
	`22`	`+ }`
	`23`	`+ }`
	`24`	`+`
	`25`	`+ for i in 0..<updatedVFences.count {`
	`26`	`+ for j in 0..<updatedVFences.count {`
	`27`	`+ if i != j && st.contains(abs(updatedVFences[i] - updatedVFences[j])) {`
	`28`	`+ ans = max(ans, Int64(abs(updatedVFences[i] - updatedVFences[j])))`
	`29`	`+ }`
	`30`	`+ }`
	`31`	`+ }`
	`32`	`+`
	`33`	`+ return ans == 0 ? -1 : Int((ans * ans) % Int64(mod))`
	`34`	`+ }`
	`35`	`+}`

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