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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#781111 | #5117. Find Maximum | ZhZlzc | WA | 0ms | 3700kb | C++20 | 1.2kb | 2024-11-25 14:49:44 | 2024-11-25 14:49:45 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
#define x first
#define y second
using namespace std;
using LL = long long;
typedef pair<int, int> PII;
typedef unsigned long long ULL;
const int N = 1e6 + 10, M = 5010, mod = 998244353;
const int inf = 1e18;
mt19937_64 rng(time(0));
vector <int> pw;
int lim;
void solve() {
int l, r;
cin >> l >> r;
int ans = 0;
int p = -1;
for(int i = lim - 1; i >= 0; i--){
int d = r / pw[i];
if(d != 0){
p = i;
break;
}
}
int sum = 0;
for(int i = 0; i < p; i++){
sum += pw[i] * 2LL;
}
if(sum >= l) ans = p * 2LL;
sum = 0;
int res = 0;
if(l / pw[p] == 1){
r -= pw[p];
res++;
}else if(l / pw[p] == 2){
r -= 2 * pw[p];
res += 2;
}else{
r -= pw[p];
res++;
}
for(int i = 0; i <= p; i++){
if(sum + 2 * pw[i] <= r){
sum += 2 * pw[i];
res += 2;
}else if(sum + pw[i] <= r){
sum += pw[i];
res++;
}else break;
}
ans = max(ans, res + p + 1);
cout << ans << "\n";
}
signed main() {
ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
int T = 1;
cin >> T;
pw.push_back(1);
int cur = 1;
while(cur <= inf){
cur *= 3LL;
pw.push_back(cur);
}
lim = pw.size();
while(T--) {
solve();
}
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3700kb
input:
10 1 2 1 3 1 4 1 5 2 3 2 4 2 5 3 4 3 5 4 5
output:
3 3 4 5 3 4 5 4 5 5
result:
ok 10 numbers
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 3656kb
input:
5050 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
output:
2 3 3 4 5 5 5 6 4 5 6 6 6 7 7 7 8 8 8 8 8 8 8 8 8 9 6 6 7 7 7 8 8 8 9 9 9 9 9 9 9 9 9 10 10 10 10 10 10 10 10 10 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 12 8 8 8 8 8 9 9 9 10 10 10 10 10 10 10 10 10 11 11 11 3 3 4 5 5 5 6 4 5 6 6 6 7 7 7 8 8 8 8 8 8 8 8 8 9 6...
result:
wrong answer 9th numbers differ - expected: '6', found: '4'