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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#786426 | #9531. Weird Ceiling | xixu | WA | 1ms | 3548kb | C++23 | 1.8kb | 2024-11-26 21:28:25 | 2024-11-26 21:28:34 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize(2)
#define int long long
// #define int __int128
#define re read()
#define pr(x) print(x)
#define fup(a, b, c, d) for(int a = (b); a <= (c); a += (d))
#define fdo(a, b, c, d) for(int a = (b); a >= (c); a -= (d))
typedef long long ll;
typedef pair<int , int> PII;
typedef map<int , int> MII;
const int inf = 0x3f3f3f3f, N = 5e5 + 10, M = 4e5 + 10, mod = 1e9 + 7;
const ll INF = 0x3f3f3f3f3f3f3f3f;
vector<int> v;
void divide(int x)
{
for(int i = 2; i <= x / i; i ++ )
if (x % i == 0)
{
int s = 1;
while (x % i == 0) {
x /= i, s *= i;
v.push_back(s);
}
}
if (x > 1) v.push_back(x);
}
void solve()
{
v.clear();
int x;
cin >> x;
divide(x);
// cout << x << '\n';
v.push_back(1);
sort(v.begin(), v.end());
int la;
ll su = 0;
vector<int> vv;
fup(i, 0, v.size() - 1, 1) {
fdo(j, i - 1, 0, 1) {
if(v[j] * v[i] <= x) vv.push_back(v[j] * v[i]);
}
}
for(auto x : vv) v.push_back(x);
sort(v.begin(), v.end());
v.erase(unique(v.begin() , v.end()) , v.end());
fup(i, 0, v.size() - 1, 1) {
// cout << v[i] << ' ';
if(!i) {la = v[i]; continue;}
su += (v[i] - la) * (x / la);
la = v[i];
}
// cout << '\n';
// cout << x << ' ' << la << '\n';
if(x != la)
su += (x - la) * (x / la);
else su ++;
if(x != la) su ++;
cout << su << '\n';
// su += (x - )
}
signed main()
{
cin.tie(0);
cout.tie(0);
ios::sync_with_stdio(false);
int _ = 1;
cin >> _;
while(_ --)
{
solve();
}
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3524kb
input:
3 5 451 114514
output:
21 10251 7075858
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 1ms
memory: 3548kb
input:
1000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101...
output:
1 3 7 9 21 16 43 25 37 36 111 37 157 64 71 65 273 73 343 82 113 144 507 93 201 196 163 128 813 137 931 161 221 324 295 158 1333 400 287 189 1641 218 1807 236 241 576 2163 225 589 301 443 291 2757 298 507 281 533 900 3423 339 3661 1024 403 385 625 386 4423 413 737 437 4971 381 5257 1444 551 480 969 4...
result:
wrong answer 12th lines differ - expected: '41', found: '37'