#include<bits/stdc++.h>
using namespace std;
#define X first
#define Y second
#define ll long long
typedef pair<int,int> ii;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int k; cin >> k;
int n; cin >> n;
ll prev_sum = 0;
vector<ii> vec;
for(int i = 1 ; i <= n ; ++i) {
char a, b;
int x, y;
cin >> a >> x;
cin >> b >> y;
if (a == b) prev_sum += abs(x - y);
if (a != b) {
prev_sum++;
if (x > y) swap(x,y);
vec.push_back(ii(x,y));
}
}
sort(vec.begin(),vec.end(),[&](ii x,ii y) {
return x.X + x.Y < y.X + y.Y;
});
vector<ll> f(vec.size() + 1,0);
vector<ll> g(vec.size() + 1,0);
auto cal = [&](vector<ll> &v) {
multiset<int> Min;
multiset<int> Max;
ll Sum_Max = 0;
ll Sum_Min = 0;
ll Med = 0;
for(int i = 0 ; i < vec.size() ; ++i) {
if (vec[i].X <= Med && Med <= vec[i].Y) {
Min.insert(vec[i].X); Sum_Min += vec[i].X;
Max.insert(vec[i].Y); Sum_Max += vec[i].Y;
}
if (vec[i].X > Med) {
Max.insert(vec[i].X); Sum_Max += vec[i].X;
Max.insert(vec[i].Y); Sum_Max += vec[i].Y;
int x = *(Max.begin());
Max.erase(Max.begin()); Sum_Max -= x;
Min.insert(x); Sum_Min += x;
}
if (vec[i].Y < Med) {
Min.insert(vec[i].X); Sum_Min += vec[i].X;
Min.insert(vec[i].Y); Sum_Min += vec[i].Y;
int x = *(--Min.end());
Min.erase(--Min.end()); Sum_Min -= x;
Max.insert(x); Sum_Max += x;
}
v[i + 1] = Sum_Max - Sum_Min;
Med = *(Max.begin());
}
};
cal(f); reverse(vec.begin(),vec.end());
cal(g); reverse(g.begin(),g.end());
ll ans = 1e18;
for(int i = 0 ; i < (k == 1 ? 1 : f.size()) ; ++i)
ans = min(ans,f[i] + g[i]);
cout << ans + prev_sum << endl;
}
/*
1 5
B 0 A 4
B 1 B 3
A 5 B 7
B 2 A 6
B 1 A 7
*/
Compilation message
bridge.cpp: In lambda function:
bridge.cpp:52:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0 ; i < vec.size() ; ++i) {
~~^~~~~~~~~~~~
bridge.cpp: In function 'int main()':
bridge.cpp:83:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0 ; i < (k == 1 ? 1 : f.size()) ; ++i)
~~^~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
3 ms |
504 KB |
Output is correct |
| 4 |
Correct |
3 ms |
504 KB |
Output is correct |
| 5 |
Correct |
3 ms |
504 KB |
Output is correct |
| 6 |
Correct |
3 ms |
504 KB |
Output is correct |
| 7 |
Correct |
3 ms |
504 KB |
Output is correct |
| 8 |
Correct |
3 ms |
504 KB |
Output is correct |
| 9 |
Correct |
3 ms |
420 KB |
Output is correct |
| 10 |
Correct |
3 ms |
504 KB |
Output is correct |
| 11 |
Correct |
3 ms |
504 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
484 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
3 ms |
504 KB |
Output is correct |
| 4 |
Correct |
3 ms |
504 KB |
Output is correct |
| 5 |
Correct |
3 ms |
476 KB |
Output is correct |
| 6 |
Correct |
3 ms |
504 KB |
Output is correct |
| 7 |
Correct |
3 ms |
504 KB |
Output is correct |
| 8 |
Correct |
3 ms |
504 KB |
Output is correct |
| 9 |
Correct |
3 ms |
504 KB |
Output is correct |
| 10 |
Correct |
3 ms |
504 KB |
Output is correct |
| 11 |
Correct |
3 ms |
504 KB |
Output is correct |
| 12 |
Correct |
155 ms |
12956 KB |
Output is correct |
| 13 |
Correct |
311 ms |
14448 KB |
Output is correct |
| 14 |
Correct |
262 ms |
12144 KB |
Output is correct |
| 15 |
Correct |
154 ms |
8692 KB |
Output is correct |
| 16 |
Correct |
210 ms |
13932 KB |
Output is correct |
| 17 |
Correct |
191 ms |
14448 KB |
Output is correct |
| 18 |
Correct |
116 ms |
14012 KB |
Output is correct |
| 19 |
Correct |
193 ms |
14492 KB |
Output is correct |
| 20 |
Correct |
182 ms |
14252 KB |
Output is correct |
| 21 |
Correct |
198 ms |
14196 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
3 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
344 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| 13 |
Correct |
3 ms |
504 KB |
Output is correct |
| 14 |
Correct |
3 ms |
504 KB |
Output is correct |
| 15 |
Correct |
3 ms |
504 KB |
Output is correct |
| 16 |
Correct |
2 ms |
376 KB |
Output is correct |
| 17 |
Correct |
3 ms |
376 KB |
Output is correct |
| 18 |
Correct |
3 ms |
380 KB |
Output is correct |
| 19 |
Correct |
3 ms |
504 KB |
Output is correct |
| 20 |
Correct |
3 ms |
504 KB |
Output is correct |
| 21 |
Correct |
3 ms |
504 KB |
Output is correct |
| 22 |
Correct |
3 ms |
504 KB |
Output is correct |
| 23 |
Correct |
3 ms |
504 KB |
Output is correct |
| 24 |
Correct |
3 ms |
504 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
380 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| 13 |
Correct |
3 ms |
504 KB |
Output is correct |
| 14 |
Correct |
3 ms |
504 KB |
Output is correct |
| 15 |
Correct |
4 ms |
504 KB |
Output is correct |
| 16 |
Correct |
3 ms |
376 KB |
Output is correct |
| 17 |
Correct |
2 ms |
376 KB |
Output is correct |
| 18 |
Correct |
2 ms |
376 KB |
Output is correct |
| 19 |
Correct |
3 ms |
504 KB |
Output is correct |
| 20 |
Correct |
3 ms |
504 KB |
Output is correct |
| 21 |
Correct |
3 ms |
504 KB |
Output is correct |
| 22 |
Correct |
3 ms |
504 KB |
Output is correct |
| 23 |
Correct |
3 ms |
504 KB |
Output is correct |
| 24 |
Correct |
3 ms |
504 KB |
Output is correct |
| 25 |
Correct |
155 ms |
12916 KB |
Output is correct |
| 26 |
Correct |
254 ms |
13212 KB |
Output is correct |
| 27 |
Correct |
314 ms |
13968 KB |
Output is correct |
| 28 |
Correct |
325 ms |
14448 KB |
Output is correct |
| 29 |
Correct |
322 ms |
14540 KB |
Output is correct |
| 30 |
Correct |
130 ms |
7796 KB |
Output is correct |
| 31 |
Correct |
151 ms |
13804 KB |
Output is correct |
| 32 |
Correct |
193 ms |
14688 KB |
Output is correct |
| 33 |
Correct |
114 ms |
14064 KB |
Output is correct |
| 34 |
Correct |
194 ms |
14384 KB |
Output is correct |
| 35 |
Correct |
201 ms |
14020 KB |
Output is correct |
| 36 |
Correct |
198 ms |
14316 KB |
Output is correct |
| 37 |
Correct |
149 ms |
13044 KB |
Output is correct |
