Created
April 13, 2019 15:28
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ABC 2019/04/13
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import strutils, sequtils | |
let | |
s = stdin.readline.split({' '}) | |
var | |
sum = 0 | |
a = s[0].parseInt | |
b = s[1].parseInt | |
for i in 0..1: | |
if a > b: | |
sum = sum + a | |
a.dec | |
else: | |
sum = sum + b | |
b.dec | |
echo sum |
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import strutils, sequtils | |
let | |
n = stdin.readline.parseInt | |
s = stdin.readline.split({' '}).map(parseInt) | |
var | |
highest = 0 | |
count = 0 | |
for i in s: | |
if highest <= i: | |
count.inc | |
highest = i | |
echo count |
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import strutils, sequtils | |
let | |
s = stdin.readline | |
var | |
wantedA = "" | |
wantedB = "" | |
f = true | |
for i in 0..<s.len: | |
if f: | |
wantedA = wantedA & "0" | |
wantedB = wantedB & "1" | |
else: | |
wantedA = wantedA & "1" | |
wantedB = wantedB & "0" | |
f = not f | |
var | |
aD = 0 | |
bD = 0 | |
for i in 0..<s.len: | |
if wantedA[i] != s[i]: | |
aD.inc | |
if wantedB[i] != s[i]: | |
bD.inc | |
let mn = min(aD, bD) | |
echo mn |
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import strutils, sequtils | |
let | |
nk = stdin.readline.split({' '}).map(parseInt) | |
n = nk[0] | |
k = nk[1] | |
var | |
s = stdin.readline | |
lenZ: seq[int] = @[] | |
lenO: seq[int] = @[] | |
now = s[0] | |
sameC = 0 | |
s = s & '2' | |
if s[0] == '0': | |
lenO.add(0) | |
for c in s: | |
if now == c: | |
sameC.inc | |
else: | |
if now == '0': | |
lenZ.add(sameC) | |
else: | |
lenO.add(sameC) | |
sameC = 1 | |
now = if now == '0': | |
'1' | |
else: | |
'0' | |
if s[^2] == '0': | |
lenO.add(0) | |
if lenZ.len <= k: | |
echo n | |
else: | |
var mx = 0 | |
for i in 0..<lenO.len - k: | |
var sm = 0 | |
for j in 0..<k: | |
sm = sm + lenZ[i + j] + lenO[i + j] | |
sm = sm + lenO[i + k] | |
if mx < sm: | |
mx = sm | |
echo mx |
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