oj.uz

Submission #39939

# Submission time Handle Problem Language Result Execution time Memory
39939 2018-01-24T13:58:49 Z imaxblue Palembang Bridges (APIO15_bridge) C++14
100 / 100
 371 ms 8588 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define pb push_back
#define x first
#define y second
#define pii pair<int, int>
#define p3i pair<pii, int>
#define pll pair<ll, ll>
#define p3l pair<pll, ll>
#define lseg L, (L+R)/2, N*2+1
#define rseg (L+R)/2+1, R, N*2+2
#define ub upper_bound
#define lb lower_bound
#define pq priority_queue
#define MN 1000000007
#define fox(k, x) for (int k=0; k<x; ++k)
#define fox1(k, x) for (int k=1; k<=x; ++k)
#define foxr(k, x) for (int k=x-1; k>=0; --k)
#define fox1r(k, x) for (int k=x; k>0; --k)
#define ms multiset
#define flood(x) memset(x, 0x3f3f3f3f, sizeof x)
#define drain(x) memset(x, 0, sizeof x)
#define rng() (rand() >> 3)*rand()

int k, n, x[100005], y[100005], t, c1, c2, p=0, d;
ll ans, curr=0, ans2;
char ch, ch2;
vector<int> v;
multiset<pii> M1, R1, L2, M2, R2;
int32_t main(){
    cin >> k >> n;
    fox(l, n){
        cin >> ch >> x[d] >> ch2 >> y[d];
        if (x[d]>y[d]){t=x[d]; x[d]=y[d]; y[d]=t;}
        ans+=y[d]-x[d];
        if (ch!=ch2){
            v.pb(x[d]);
            v.pb(y[d]);
            curr+=x[d];
            --c2;
            ans++;
            R2.insert(mp(x[d], y[d]));
            ++d;
        }
    }
    //cout << d << endl;
    if (n<=100 && k==2){
        ans2=(1LL << 60);
        if (v.size()==0) ans2=0;
        fox(l, v.size()){
            for(int l2=l; l2<v.size(); ++l2){
                curr=0;
                fox(l3, d){
                    curr+=max(0, min(max(v[l]-y[l3], x[l3]-v[l]), max(v[l2]-y[l3], x[l3]-v[l2])));
                }
                ans2=min(ans2, curr);
            }
        }
        cout << ans+ans2*2;
        return 0;
    }
    ans2=curr;
    v.pb(0);
    sort(v.begin(), v.end());
    fox1(l, v.size()-1){
        curr+=1LL*c2*(v[l]-v[l-1]);
        //cout << v[l] << ' ' << curr << endl;
        while(R2.size() && R2.begin()->x<=v[l]){
            M2.insert(mp(R2.begin()->y, R2.begin()->x));
            R2.erase(R2.begin());
            ++c2;
        }
        while(M2.size() && M2.begin()->x<=v[l]){
            ++c2;
            L2.insert(mp(M2.begin()->y+M2.begin()->x, M2.begin()->y));
            M2.erase(M2.begin());
        }
        if (k==1){
            ans2=min(ans2, curr);
            continue;
        }
        while(L2.size() && v[p]>=L2.begin()->x-v[l]){
            --c1; --c2;
            if (!(v[p]>=L2.begin()->y))
                curr+=L2.begin()->x-v[l]-v[p];
            R1.insert(mp(L2.begin()->y, L2.begin()->x-L2.begin()->y));
            L2.erase(L2.begin());
        }
        while(R1.size() && R1.begin()->x<=v[p]){
            M1.insert(mp(R1.begin()->y, R1.begin()->x));
            R1.erase(R1.begin());
            ++c1;
        }
        while(M1.size() && M1.begin()->x<=v[p]){
            ++c1;
            M1.erase(M1.begin());
        }
        while(c1<=0 && p<l-1){
            curr+=1LL*(v[p+1]-v[p])*c1; ++p;
            while(L2.size() && v[p]>=L2.begin()->x-v[l]){
                --c1; --c2;
                if (!(v[p]>=L2.begin()->y))
                    curr+=L2.begin()->x-v[l]-v[p];
                R1.insert(mp(L2.begin()->y, L2.begin()->x-L2.begin()->y));
                L2.erase(L2.begin());
            }
            while(R1.size() && R1.begin()->x<=v[p]){
                M1.insert(mp(R1.begin()->y, R1.begin()->x));
                R1.erase(R1.begin());
                ++c1;
            }
            while(M1.size() && M1.begin()->x<=v[p]){
                ++c1;
                M1.erase(M1.begin());
            }
        }
        /*if (curr<ans2){
            cout << v[p] << ' '  << v[l] << ' ' << c1 << ' ' << c2 << ' ' << curr << endl;
        }*/
        ans2=min(ans2, curr);
    }
    //cout << ans << ' ' << ans2 << endl;
    cout << ans+ans2*2;
    return 0;
}

Compilation message

bridge.cpp: In function 'int32_t main()':
bridge.cpp:18:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
                                  ^
bridge.cpp:52:9: note: in expansion of macro 'fox'
         fox(l, v.size()){
         ^
bridge.cpp:53:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int l2=l; l2<v.size(); ++l2){
                             ^
bridge.cpp:19:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox1(k, x) for (int k=1; k<=x; ++k)
                                   ^
bridge.cpp:67:5: note: in expansion of macro 'fox1'
     fox1(l, v.size()-1){
     ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2808 KB Output is correct
2 Correct 0 ms 2808 KB Output is correct
3 Correct 1 ms 2940 KB Output is correct
4 Correct 2 ms 2940 KB Output is correct
5 Correct 0 ms 2940 KB Output is correct
6 Correct 2 ms 2940 KB Output is correct
7 Correct 0 ms 2940 KB Output is correct
8 Correct 2 ms 2940 KB Output is correct
9 Correct 2 ms 2940 KB Output is correct
10 Correct 2 ms 2940 KB Output is correct
11 Correct 2 ms 2940 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2808 KB Output is correct
2 Correct 0 ms 2808 KB Output is correct
3 Correct 1 ms 2940 KB Output is correct
4 Correct 2 ms 2940 KB Output is correct
5 Correct 2 ms 2940 KB Output is correct
6 Correct 2 ms 2940 KB Output is correct
7 Correct 2 ms 2940 KB Output is correct
8 Correct 3 ms 2940 KB Output is correct
9 Correct 0 ms 2940 KB Output is correct
10 Correct 2 ms 2940 KB Output is correct
11 Correct 0 ms 2940 KB Output is correct
12 Correct 122 ms 8588 KB Output is correct
13 Correct 337 ms 8588 KB Output is correct
14 Correct 245 ms 8060 KB Output is correct
15 Correct 169 ms 6096 KB Output is correct
16 Correct 221 ms 8588 KB Output is correct
17 Correct 208 ms 8588 KB Output is correct
18 Correct 196 ms 8588 KB Output is correct
19 Correct 248 ms 8588 KB Output is correct
20 Correct 167 ms 8588 KB Output is correct
21 Correct 171 ms 8588 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2808 KB Output is correct
2 Correct 0 ms 2808 KB Output is correct
3 Correct 8 ms 2808 KB Output is correct
4 Correct 8 ms 2808 KB Output is correct
5 Correct 2 ms 2808 KB Output is correct
6 Correct 0 ms 2808 KB Output is correct
7 Correct 7 ms 2808 KB Output is correct
8 Correct 9 ms 2808 KB Output is correct
9 Correct 13 ms 2808 KB Output is correct
10 Correct 14 ms 2808 KB Output is correct
11 Correct 11 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2808 KB Output is correct
2 Correct 0 ms 2808 KB Output is correct
3 Correct 5 ms 2808 KB Output is correct
4 Correct 8 ms 2808 KB Output is correct
5 Correct 2 ms 2808 KB Output is correct
6 Correct 0 ms 2808 KB Output is correct
7 Correct 6 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 10 ms 2808 KB Output is correct
10 Correct 11 ms 2808 KB Output is correct
11 Correct 8 ms 2808 KB Output is correct
12 Correct 11 ms 2808 KB Output is correct
13 Correct 1 ms 2940 KB Output is correct
14 Correct 2 ms 2940 KB Output is correct
15 Correct 3 ms 2940 KB Output is correct
16 Correct 1 ms 2808 KB Output is correct
17 Correct 1 ms 2808 KB Output is correct
18 Correct 1 ms 2808 KB Output is correct
19 Correct 2 ms 2940 KB Output is correct
20 Correct 2 ms 2940 KB Output is correct
21 Correct 2 ms 2940 KB Output is correct
22 Correct 2 ms 2940 KB Output is correct
23 Correct 2 ms 2940 KB Output is correct
24 Correct 2 ms 2940 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2808 KB Output is correct
2 Correct 0 ms 2808 KB Output is correct
3 Correct 5 ms 2808 KB Output is correct
4 Correct 8 ms 2808 KB Output is correct
5 Correct 2 ms 2808 KB Output is correct
6 Correct 0 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 8 ms 2808 KB Output is correct
9 Correct 8 ms 2808 KB Output is correct
10 Correct 10 ms 2808 KB Output is correct
11 Correct 8 ms 2808 KB Output is correct
12 Correct 11 ms 2808 KB Output is correct
13 Correct 1 ms 2940 KB Output is correct
14 Correct 2 ms 2940 KB Output is correct
15 Correct 2 ms 2940 KB Output is correct
16 Correct 0 ms 2808 KB Output is correct
17 Correct 1 ms 2808 KB Output is correct
18 Correct 1 ms 2808 KB Output is correct
19 Correct 1 ms 2940 KB Output is correct
20 Correct 2 ms 2940 KB Output is correct
21 Correct 2 ms 2940 KB Output is correct
22 Correct 2 ms 2940 KB Output is correct
23 Correct 2 ms 2940 KB Output is correct
24 Correct 2 ms 2940 KB Output is correct
25 Correct 151 ms 8588 KB Output is correct
26 Correct 254 ms 8588 KB Output is correct
27 Correct 320 ms 8588 KB Output is correct
28 Correct 371 ms 8588 KB Output is correct
29 Correct 368 ms 8588 KB Output is correct
30 Correct 161 ms 5832 KB Output is correct
31 Correct 243 ms 8588 KB Output is correct
32 Correct 207 ms 8588 KB Output is correct
33 Correct 208 ms 8588 KB Output is correct
34 Correct 310 ms 8588 KB Output is correct
35 Correct 179 ms 8588 KB Output is correct
36 Correct 216 ms 8588 KB Output is correct
37 Correct 214 ms 8588 KB Output is correct