#include <bits/stdc++.h>
using namespace std;
const int N = 200005;
int n, k;
int a[N], b[N], t[N];
vector<int> z, vec, v;
int res[N], lst[N];
long long ans;
// BIT
int T[N];
void merge(int type, int &x, int y) {
if (type == 0) x = max(x, y); else x += y;
}
void upd(int type, int x, int v) { for (; x > 0; x -= x & -x) merge(type, T[x], v); }
int get(int type, int x) { int res = 0; for (; x < N; x += x & -x) merge(type, res, T[x]); return res; }
int main() {
ios_base::sync_with_stdio(false); cin.tie(0);
cin >> n >> k;
for (int i = 1; i <= n; ++i) cin >> a[i] >> b[i];
for (int i = 1; i <= k; ++i) {
cin >> t[i];
z.push_back(t[i]);
vec.push_back(i);
}
sort(z.begin(), z.end());
z.resize(distance(z.begin(), unique(z.begin(), z.end())));
sort(vec.begin(), vec.end(), [&](int x, int y) {
return t[x] < t[y];
});
for (int i = 1; i <= n; ++i) {
if (a[i] > b[i]) swap(a[i], b[i]), res[i] = 1;
v.push_back(i);
}
sort(v.begin(), v.end(), [&](int x, int y) {
return b[x] < b[y];
});
int pt = 0;
for (int i = 0; i < v.size(); ++i) {
while(pt < vec.size() && t[vec[pt]] < b[v[i]]) {
upd(0, lower_bound(z.begin(), z.end(), t[vec[pt]]) - z.begin() + 1, vec[pt]);
++pt;
}
int A = lower_bound(z.begin(), z.end(), a[v[i]]) - z.begin() + 1;
lst[v[i]] = get(0, A);
}
memset(T, 0, sizeof T); // reset BIT
pt = vec.size() - 1;
for (int i = v.size()-1; i >= 0; --i) {
while(pt >= 0 && b[v[i]] <= t[vec[pt]]) {
upd(1, vec[pt], 1);
--pt;
}
if (lst[v[i]] > 0) res[v[i]] = 1;
int cur = get(1, lst[v[i]] + 1);
res[v[i]] ^= (cur & 1);
}
for (int i = 1; i <= n; ++i) {
ans += (res[i] == 0 ? a[i] : b[i]);
}
cout << ans << '\n';
}
Compilation message
fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:44:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < v.size(); ++i) {
^
fortune_telling2.cpp:45:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(pt < vec.size() && t[vec[pt]] < b[v[i]]) {
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 2 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 3 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 4 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 5 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 6 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 7 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 8 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 9 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 10 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 11 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 12 |
Correct |
0 ms |
6868 KB |
Output is correct |
| 13 |
Correct |
0 ms |
6868 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
7180 KB |
Output is correct |
| 2 |
Correct |
19 ms |
7292 KB |
Output is correct |
| 3 |
Correct |
33 ms |
7292 KB |
Output is correct |
| 4 |
Correct |
36 ms |
7808 KB |
Output is correct |
| 5 |
Correct |
39 ms |
7808 KB |
Output is correct |
| 6 |
Correct |
39 ms |
7808 KB |
Output is correct |
| 7 |
Correct |
36 ms |
7808 KB |
Output is correct |
| 8 |
Correct |
33 ms |
7808 KB |
Output is correct |
| 9 |
Correct |
26 ms |
7808 KB |
Output is correct |
| 10 |
Correct |
29 ms |
7808 KB |
Output is correct |
| 11 |
Correct |
29 ms |
7808 KB |
Output is correct |
| 12 |
Correct |
26 ms |
7808 KB |
Output is correct |
| 13 |
Correct |
36 ms |
7808 KB |
Output is correct |
| 14 |
Correct |
36 ms |
7808 KB |
Output is correct |
| 15 |
Correct |
36 ms |
7808 KB |
Output is correct |
| 16 |
Correct |
39 ms |
7808 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
119 ms |
9600 KB |
Output is correct |
| 2 |
Correct |
133 ms |
9600 KB |
Output is correct |
| 3 |
Correct |
183 ms |
9980 KB |
Output is correct |
| 4 |
Correct |
263 ms |
11008 KB |
Output is correct |
| 5 |
Correct |
93 ms |
9600 KB |
Output is correct |
| 6 |
Correct |
236 ms |
11008 KB |
Output is correct |
| 7 |
Correct |
246 ms |
11008 KB |
Output is correct |
| 8 |
Correct |
233 ms |
11008 KB |
Output is correct |
| 9 |
Correct |
206 ms |
11008 KB |
Output is correct |
| 10 |
Correct |
249 ms |
11008 KB |
Output is correct |
| 11 |
Correct |
223 ms |
11008 KB |
Output is correct |
| 12 |
Correct |
193 ms |
11008 KB |
Output is correct |
| 13 |
Correct |
216 ms |
11008 KB |
Output is correct |
| 14 |
Correct |
149 ms |
11008 KB |
Output is correct |
| 15 |
Correct |
143 ms |
11008 KB |
Output is correct |
| 16 |
Correct |
136 ms |
11008 KB |
Output is correct |
| 17 |
Correct |
156 ms |
11008 KB |
Output is correct |
| 18 |
Correct |
146 ms |
11008 KB |
Output is correct |
| 19 |
Correct |
183 ms |
11008 KB |
Output is correct |
| 20 |
Correct |
173 ms |
11008 KB |
Output is correct |
