# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
374067 |
2021-03-06T14:15:09 Z |
hhh07 |
Matching (CEOI11_mat) |
C++14 |
|
924 ms |
65540 KB |
#include <iostream>
#include <algorithm>
#include <cmath>
#include <map>
#include <climits>
#include <vector>
#include <utility>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> ii;
ll mod = 1e9 + 7, p = 1000003, n, m;
ll fen[1000001];
int fen2[1000001];
ll sum(ll idx){
ll sum = 0;
while(idx > 0){
sum += fen[idx];
sum %= mod;
idx -= idx&-idx;
}
return sum;
}
void add(ll idx, ll val){
while(idx <= m){
fen[idx] += val;
idx += idx&-idx;
}
}
int sum2(int idx){
int sum = 0;
while(idx > 0){
sum += fen2[idx];
idx -= idx&-idx;
}
return sum;
}
void add2(int idx, int val){
while(idx <= m){
fen2[idx] += val;
idx += idx&-idx;
}
}
int main(){
std::ios::sync_with_stdio(false);
cin >> n >> m;
vector<ll> a(n), b(m);
for (int i = 0; i < n; i++)
cin >> a[i];
for (ll i = 0; i < m; i++)
cin >> b[i];
vector<ll> c = a;
for (ll i = 0; i < n; i++)
a[c[i] - 1] = i + 1;
vector<ii> d;
for (ll i = 0; i < m; i++)
d.push_back({b[i], i});
sort(d.begin(), d.end());
for (ll i = 0; i < m; i++)
b[d[i].second] = i + 1;
ll hes = 0, hes2 = 0;
vector<ll> pows;
pows.push_back(1);
for (ll i = 1; i < 1000001; i++)
pows.push_back((pows[i - 1]*p)%mod);
for (ll i = 0; i < n; i++){
hes += pows[i]*a[i];
hes %= mod;
add2(b[i], 1);
}
vector<ll> rj;
for (ll i = 0; i < n; i++){
add(b[i], pows[i]);
hes2 += (sum2(b[i])*pows[i])%mod;
hes2 %= mod;
}
if (hes == hes2)
rj.push_back(1);
for (ll i = n; i < m; i++){
hes *= p; hes %= mod;
hes2 -= sum(m) - sum(b[i - n]) + (sum2(b[i - n])*pows[i - n])%mod;
while(hes2 < 0)
hes2 += mod;
add2(b[i - n], -1);
add(b
[i - n], -sum(b[i - n]) + sum(b[i - n] - 1));
add2(b[i], 1);
add(b[i], pows[i]);
hes2 += sum(m) - sum(b[i]) + (sum2(b[i])*pows[i])%mod;
while(hes2 < 0)
hes2 += mod;
hes2 %= mod;
if (hes == hes2)
rj.push_back(i - n + 2);
}
cout << rj.size() << endl;
for (ll i = 0; i < rj.size(); i++)
cout << rj[i] << " ";
return 0;
}
Compilation message
mat.cpp: In function 'int main()':
mat.cpp:112:22: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
112 | for (ll i = 0; i < rj.size(); i++)
| ~~^~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
23 ms |
8672 KB |
Output is correct |
2 |
Correct |
22 ms |
8668 KB |
Output is correct |
3 |
Correct |
23 ms |
8668 KB |
Output is correct |
4 |
Correct |
23 ms |
8672 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
23 ms |
8792 KB |
Output is correct |
2 |
Correct |
26 ms |
8676 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
9176 KB |
Output is correct |
2 |
Correct |
31 ms |
9180 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
9304 KB |
Output is correct |
2 |
Correct |
32 ms |
9180 KB |
Output is correct |
3 |
Correct |
24 ms |
8792 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
124 ms |
15312 KB |
Output is correct |
2 |
Correct |
140 ms |
15296 KB |
Output is correct |
3 |
Correct |
147 ms |
16220 KB |
Output is correct |
4 |
Correct |
142 ms |
16220 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
138 ms |
16716 KB |
Output is correct |
2 |
Correct |
152 ms |
15440 KB |
Output is correct |
3 |
Correct |
149 ms |
15952 KB |
Output is correct |
4 |
Correct |
136 ms |
20180 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
138 ms |
16848 KB |
Output is correct |
2 |
Correct |
120 ms |
15952 KB |
Output is correct |
3 |
Correct |
158 ms |
15696 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
718 ms |
55612 KB |
Output is correct |
2 |
Runtime error |
461 ms |
65540 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
647 ms |
54788 KB |
Output is correct |
2 |
Correct |
924 ms |
51900 KB |
Output is correct |
3 |
Runtime error |
416 ms |
65540 KB |
Execution killed with signal 9 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
731 ms |
52992 KB |
Output is correct |
2 |
Correct |
652 ms |
65536 KB |
Output is correct |
3 |
Correct |
801 ms |
57788 KB |
Output is correct |
4 |
Runtime error |
387 ms |
65540 KB |
Execution killed with signal 9 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
678 ms |
53876 KB |
Output is correct |
2 |
Correct |
789 ms |
52796 KB |
Output is correct |
3 |
Correct |
301 ms |
27464 KB |
Output is correct |
4 |
Runtime error |
481 ms |
65540 KB |
Execution killed with signal 9 |