(220914)[개인 공부] 백준 (1시간)

8958

let input = Int(readLine()!)!
var sums = [Int]()

for _ in 0..<input {
    let result = readLine()!
    var sum = 0
    var count = 0
    for idx in 0..<result.count {
        if result[String.Index(encodedOffset: idx)] == "O" {
            count += 1
            sum += count
        } else {
            count = 0
        }
    }
    sums.append(sum)
}

for sum in sums {
    print(sum)
}

4344

import Foundation

let input = Int(readLine()!)!
var results = [Double]()

for _ in 0 ..< input {
    var sum: Double = 0
    var count: Double = 0
    var scores: [Double] = readLine()!.split(separator: " ").map {
        sum += Double($0)!
        count += 1
        return Double($0)!
    }
    sum -= scores[0]
    scores.removeFirst()
    count -= 1

    let average: Double = sum / count
    var result: Double = 0
    for score in scores {
        if score > average {
            result += 1
        }
    }
    results.append(result/count)
}
for result in results {
    print(String(format: "%.3f%%", result * 100))
}

15596

long long           sum(int *a, int n)
{
    int             idx = 0;
    long long       sum = 0;

    while (idx < n)
    {
        sum += (long long)a[idx];
        idx++;
    }
    return (sum);
}

4673

func selfNum(input: Int) -> Int {
    let new = String(input)
    var result = input
    _ = new.map {
        result += Int(String($0))!
    }
    return result
}

for i in 1...10000 {
    history.append(selfNum(input: i))
}

for i in 1...10000 {
    if history.firstIndex(of: i) == nil {
        print(i)
    }
}

1065

let k = Int(readLine()!)!
var sum = 0
for i in 1 ... k {
    var ns = [Int]()
    _ = String(i).map {
        ns.append(Int(String($0))!)
    }
    if ns.count >= 3 {
        let d = ns[1] - ns[0]
        var flag = true
        for idx in 2 ..< ns.count {
            if ns[idx] - ns[idx - 1] != d {
                flag = false
                break
            }
        }
        if flag {
            sum += 1
        }
    } else {
        sum += 1
    }
}
print(sum)

feldblume5263 / TIL

(220914)[개인 공부] 백준 (1시간) #31