complete 11735.kt 14254.kt 16293.kt

This commit is contained in:
2025-09-05 17:54:40 +09:00
parent 97b6fb2901
commit f18ae8d149
3 changed files with 142 additions and 0 deletions

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fun 미래예측정산소(n: Long, queries: List<Pair<Int, Long>>): List<Long> {
val isRowed = BooleanArray(n.toInt()) { false }
val isColumned = BooleanArray(n.toInt()) { false }
var rowSum = 0L
var rowCnt = 0L
var columnSum = 0L
var columnCnt = 0L
return queries.map { (selector, index) ->
if (selector == 0) { // row
if (isRowed[index.toInt()]) {
0
} else {
isRowed[index.toInt()] = true
val value = (index + 2) * (n - columnCnt) - columnSum + (n * (n - 1)) / 2
rowCnt++
rowSum += index
value
}
} else {
if (isColumned[index.toInt()]) {
0
} else {
isColumned[index.toInt()] = true
val value = (index + 2) * (n - rowCnt) - rowSum + (n * (n - 1)) / 2
columnCnt++
columnSum += index
value
}
}
}
}
fun main() = with(System.`in`.bufferedReader()) {
val (n, q) = this.readLine().split(" ").map { it.toInt() }
val queries = (1..q).map {
val queryLine = this.readLine().split(" ")
val selectorChar = queryLine[0][0]
val selector = when (selectorChar) {
'R' -> {
0
}
'C' -> {
1
}
else -> {
-1
}
}
val value = queryLine[1].toLong()
selector to value - 1 // index value로 변환
}
println(
미래예측정산소(n.toLong(), queries).joinToString("\n")
)
}

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fun diffStr(s1: String, s2: String) =
(s1.toList() zip s2.toList()).count { it.first != it.second }
fun 비밀번호변경을위한최소수정횟수(pwdOld: String, k: Int): Int {
val n = pwdOld.length
if (2 * k <= n) { // <분리> 케이스
return diffStr(pwdOld.substring(0, k), pwdOld.substring(n - k))
} else {
var modify = 0
val space = n - k
for (i in 0 until space) {
var pos = i
val cnts = IntArray(26) { 0 }
while (pos < n) {
cnts[pwdOld[pos].code - 'a'.code]++
pos += space
}
val maxSent = cnts.withIndex().maxBy { it.value }
modify += cnts.sum() - maxSent.value
}
return modify
}
}
fun main() = with(System.`in`.bufferedReader()) {
val pwdOld = this.readLine().trim()
val k = this.readLine().toInt()
println(
비밀번호변경을위한최소수정횟수(pwdOld, k)
)
}

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import kotlin.math.roundToInt
fun main() = with(System.`in`.bufferedReader()) {
val (h, w) = this.readLine().split(" ").map { it.toInt() }
var s = 0
var cnt = 0
var left: Int = 0
var right: Int = 0
for (i in h downTo 1) {
val line = this.readLine()
for (j in 0 until w) {
if (line[j] == '.') {
continue
} else {
s += j
cnt++
}
}
if (i == 1) {
left = line.withIndex().first { it.value != '.' }.index
right = line.withIndex().last { it.value != '.' }.index
}
}
if (cnt == 0) {
println("balanced")
} else {
val mid = (s.toDouble() / cnt.toDouble()).roundToInt()
if (mid < left) {
println("left")
} else if (mid > right) {
println("right")
} else {
println("balanced")
}
}
}