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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#390061 | #5109. Spider Walk | 0_GB_RAM# | WA | 352ms | 9200kb | C++23 | 2.4kb | 2024-04-15 01:33:38 | 2024-04-15 01:33:39 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll=long long;
//#define int ll
#define rep(i,a,b) for(int i=a;i<(b);++i)
#define all(x) begin(x),end(x)
#define sz(x) (int)((x).size())
using pii=pair<int,int>;
using vi=vector<int>;
#define fi first
#define se second
#define pb push_back
int t[200500];
int get(int v)
{
v++;
int s = 0;
for (int i=v; i>0; i=i&(i+1), i--)
s += t[i];
return s;
}
void upd(int v, int x)
{
v++;
for (int i=v; i<200500; i|=(i+1))
t[i] += x;
}
int n, m, s;
int gett(int v)
{
return get((v+n+n+n)%n);
}
void upd(int l, int r, int d)
{
if (l > r)
return;
for (int i=-1; i<=1; i++)
{
int lx = max(l+i*n, 0);
int rx = min(r+i*n, n-1);
if (lx <= rx)
upd(lx, d), upd(rx+1, -d);
}
}
void bridge(int t) {
// for (int i=0; i<n; i++)
// cout<<get(i)<<" ";
// cout<<"\n";
int x = get(t);
int y = get((t + 1) % n);
int d = y - x;
upd(t, d);
upd(t + 1, -d);
upd((t + 1) % n, -d);
upd((t + 1) % n + 1, d);
swap(x, y);
if (x < y)
{
if (gett(t+2) < y - 1)
upd((t+1)%n, -1), upd((t+1)%n+1, 1);
int r = t;
int l = t-n;
while (r-l>1)
{
int m = (l+r)/2;
if (gett(m) - x == t - m + 1)
r = m;
else
l = m;
}
upd(r, t-1, -1);
}
else
{
if (gett(t-1) < x - 1)
upd(t, -1), upd(t+1, 1);
int l = t+1;
int r = t+n+1;
while (r-l>1)
{
int m = (l+r)/2;
if (gett(m) - y == m - (t+1) + 1)
l = m;
else
r = m;
}
upd(t+2, l, -1);
}
}
signed main() {
cin.tie(0)->sync_with_stdio(0);
cin.exceptions(cin.failbit);
cin>>n>>m>>s;
s--;
vector<pair<int, int> > br;
for (int i=0; i<m; i++)
{
int d, t;
cin>>d>>t;
t--;
br.pb({d, t});
}
for (int i=0; i<n; i++)
{
int d = min(abs(i-s), abs(i+n-s));
upd(i, d);
upd(i+1, -d);
}
sort(br.begin(), br.end());
reverse(br.begin(), br.end());
for (auto [d, t] : br)
bridge(t);
for (int i=0; i<n; i++)
cout<<get(i)<<"\n";
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 297ms
memory: 8552kb
input:
200000 500000 116205 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50...
output:
2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
result:
ok 200000 lines
Test #2:
score: 0
Accepted
time: 332ms
memory: 9164kb
input:
200000 500000 200000 1 148896 2 178903 3 36800 4 98361 5 79634 6 29266 7 51632 8 166082 9 66246 10 145043 11 41644 12 81858 13 87530 14 199625 15 127160 16 49786 17 181673 18 48403 19 30274 20 101455 21 105100 22 52149 23 22810 24 79308 25 191579 26 96365 27 154697 28 45255 29 64965 30 192604 31 330...
output:
1 0 1 1 2 2 3 3 4 5 6 7 8 8 9 10 11 12 12 11 12 13 14 15 16 17 18 17 18 19 20 21 21 22 23 24 25 26 27 28 27 28 28 29 30 31 31 32 32 33 34 35 36 37 38 39 40 41 42 42 43 44 45 46 47 48 49 50 51 52 52 53 54 55 56 57 58 59 59 60 61 62 61 62 63 64 65 66 66 67 67 68 68 69 70 70 71 72 73 74 75 76 76 77 78 ...
result:
ok 200000 lines
Test #3:
score: 0
Accepted
time: 352ms
memory: 9200kb
input:
189566 481938 180576 30827 77075 266878 6648 251124 43809 22925 151090 165947 34594 248343 179640 217340 68611 1607 145089 312862 151436 72904 160893 55989 147148 189122 110726 408438 184618 461208 122245 404636 154726 148242 165504 8878 31007 300131 17893 433102 58524 388216 49111 307221 65807 1774...
output:
8691 8692 8693 8694 8695 8696 8697 8698 8699 8700 8701 8702 8703 8704 8705 8706 8707 8708 8709 8710 8711 8712 8713 8714 8715 8716 8717 8718 8719 8720 8721 8722 8723 8724 8725 8726 8727 8728 8729 8730 8731 8732 8733 8734 8735 8736 8737 8738 8739 8740 8740 8741 8742 8743 8744 8745 8746 8747 8748 8749 ...
result:
ok 189566 lines
Test #4:
score: -100
Wrong Answer
time: 350ms
memory: 7660kb
input:
181447 483992 86977 107095 161626 239957 140211 424191 79709 399773 77498 277365 32886 190721 131207 240187 140835 218366 6622 33108 76258 330939 140453 164405 119170 476970 49217 21280 120632 97648 159438 135504 178839 359378 170055 274161 44870 119531 84308 166512 22284 271134 116871 87409 101513 ...
output:
93562 86215 86031 86030 86029 86028 86027 86026 86025 86024 86023 86022 86021 86020 86019 86018 86017 86017 86016 86015 86014 86013 86012 86011 86010 86009 86008 86007 86006 86005 86004 86003 86002 86001 86000 85999 85999 85998 85997 85996 85995 85994 85993 85992 85991 85990 85989 85988 85987 85986 ...
result:
wrong answer 1st lines differ - expected: '86033', found: '93562'