oj.uz

Submission #651470

# Submission time Handle Problem Language Result Execution time Memory
651470 2022-10-19T00:50:51 Z perchuts Swapping Cities (APIO20_swap) C++17
43 / 100
 279 ms 58788 KB 
#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define sz(x) (int) x.size()
#define endl '\n'
#define pb push_back
#define _ ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);

using namespace std;

using ll = long long;
using ull = unsigned long long;
using ii = pair<int,int>;
using iii = tuple<int,int,int>;

const int inf = 2e9+1;
const int mod = 1e9+7;
const int maxn = 3e5+100;

template<typename X, typename Y> bool ckmin(X& x, const Y& y) { return (y < x) ? (x=y,1):0; }
template<typename X, typename Y> bool ckmax(X& x, const Y& y) { return (x < y) ? (x=y,1):0; }

vector<tuple<int,int,int>>edges;

int lvl[maxn], par[maxn], when[maxn];

ii pontas[maxn];

vector<int>comp[maxn];
vector<ii>parents[maxn];

int findp(int x){return par[x] = (par[x]==x?x:findp(par[x]));}

void merge(int w,int u,int v){
    int pu = findp(u), pv = findp(v), ciclo = 0;
    if(lvl[pu]<lvl[pv])swap(pu,pv), swap(u,v);
    if(pu==pv)ciclo = 1;
    //check if someone's component turned into a non-path component
    par[pv] = pu;  
    if(when[pu]==inf&&when[pv]!=inf){
        for(auto x:comp[pu])when[x] = w;
    }else if(when[pu]!=inf&&when[pv]==inf){
        for(auto x:comp[pv])when[x] = w;
    }else if((ciclo||(u!=pontas[pu].first&&u!=pontas[pu].second)||
    (v!=pontas[pv].first&&v!=pontas[pv].second))&&when[pu]==inf&&
    when[pv]==inf){
        for(auto x:comp[pu])when[x] = w;
        if(!ciclo)for(auto x:comp[pv])when[x] = w;
    }
    if(ciclo)return;
    for(auto x:comp[pv]){
        comp[pu].pb(x);
        parents[x].pb({w,pu});
    }
    if(when[pu]==when[pv]&&when[pu]==inf){
        if(pontas[pu].first==u)swap(pontas[pu].first,pontas[pu].second);
        if(pontas[pv].first!=v)pontas[pu].second = pontas[pv].first;
        else pontas[pu].second = pontas[pv].second;
    }
    if(lvl[pu]==lvl[pv])++lvl[pu];
}

void init(int N, int M,vector<int> U, vector<int> V, vector<int> W) {

    for(int i=0;i<M;++i){
        edges.pb({W[i], U[i], V[i]});
    }

    for(int i=0;i<N;++i){
        par[i] = i, pontas[i] = {i,i}, when[i] = inf;
        parents[i].pb({0,i}), comp[i].pb(i);
    }

    sort(all(edges));

    for(auto [w,u,v]:edges){
        merge(w,u,v);
    }
    
    for(int i=0;i<N;++i)reverse(all(parents[i]));
}

int getMinimumFuelCapacity(int X, int Y) {
    if(when[X]==inf)return -1;
    int last = 0;
    while(last!=min(sz(parents[X]), sz(parents[Y]))-1){
        if(parents[X][last]!=parents[Y][last])break;
        ++last;
    }
    auto [custo,pai] = parents[X][last];
    assert(pai==parents[Y][last].second);
    ckmax(custo, parents[Y][last].first);
    return max(custo, min(when[X], when[Y]));
}

// int main() {
//   int N, M; 
//   assert(2 == scanf("%d %d", &N, &M));
  
//   std::vector<int> U(M), V(M), W(M);
//   for (int i = 0; i < M; ++i) {
//     assert(3 == scanf("%d %d %d", &U[i], &V[i], &W[i]));
//   }

//   int Q;
//   assert(1 == scanf("%d", &Q));

//   std::vector<int> X(Q), Y(Q);
//   for (int i = 0; i < Q; ++i) {
//     assert(2 == scanf("%d %d", &X[i], &Y[i]));
//   }

//   init(N, M, U, V, W);
  
//   std::vector<int> minimum_fuel_capacities(Q);
//   for (int i = 0; i < Q; ++i) {
//     minimum_fuel_capacities[i] = getMinimumFuelCapacity(X[i], Y[i]);
//   }

//   for (int i = 0; i < Q; ++i) {
//     printf("%d\n", minimum_fuel_capacities[i]);
//   }
  
//   return 0;
// }

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 9 ms 14336 KB Output is correct
4 Correct 9 ms 14468 KB Output is correct
5 Correct 10 ms 14536 KB Output is correct
6 Correct 9 ms 14608 KB Output is correct
7 Correct 10 ms 14604 KB Output is correct
8 Correct 9 ms 14548 KB Output is correct
9 Correct 131 ms 34828 KB Output is correct
10 Correct 218 ms 39120 KB Output is correct
11 Correct 209 ms 38084 KB Output is correct
12 Correct 219 ms 39936 KB Output is correct
13 Correct 119 ms 33116 KB Output is correct
14 Correct 145 ms 34856 KB Output is correct
15 Correct 245 ms 43852 KB Output is correct
16 Correct 239 ms 42896 KB Output is correct
17 Correct 241 ms 44488 KB Output is correct
18 Correct 173 ms 37444 KB Output is correct
19 Correct 76 ms 23252 KB Output is correct
20 Correct 253 ms 44252 KB Output is correct
21 Correct 243 ms 44024 KB Output is correct
22 Correct 250 ms 45700 KB Output is correct
23 Correct 178 ms 36292 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Runtime error 152 ms 58788 KB Execution killed with signal 6
4 Halted 0 ms 0 KB -

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 9 ms 14336 KB Output is correct
4 Correct 9 ms 14468 KB Output is correct
5 Correct 10 ms 14536 KB Output is correct
6 Correct 9 ms 14608 KB Output is correct
7 Correct 10 ms 14604 KB Output is correct
8 Correct 9 ms 14548 KB Output is correct
9 Correct 9 ms 14420 KB Output is correct
10 Correct 11 ms 14532 KB Output is correct
11 Correct 8 ms 14548 KB Output is correct
12 Correct 9 ms 14548 KB Output is correct
13 Correct 9 ms 14548 KB Output is correct
14 Correct 9 ms 14548 KB Output is correct
15 Correct 11 ms 14588 KB Output is correct
16 Correct 10 ms 14540 KB Output is correct
17 Correct 11 ms 14548 KB Output is correct
18 Correct 9 ms 14564 KB Output is correct
19 Correct 9 ms 14552 KB Output is correct
20 Correct 9 ms 14532 KB Output is correct
21 Correct 9 ms 14544 KB Output is correct
22 Correct 9 ms 14420 KB Output is correct
23 Correct 8 ms 14540 KB Output is correct
24 Correct 10 ms 14632 KB Output is correct
25 Correct 9 ms 14564 KB Output is correct
26 Correct 11 ms 14664 KB Output is correct
27 Correct 10 ms 14548 KB Output is correct
28 Correct 9 ms 14584 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 8 ms 14420 KB Output is correct
4 Correct 9 ms 14336 KB Output is correct
5 Correct 9 ms 14468 KB Output is correct
6 Correct 10 ms 14536 KB Output is correct
7 Correct 9 ms 14608 KB Output is correct
8 Correct 10 ms 14604 KB Output is correct
9 Correct 9 ms 14548 KB Output is correct
10 Correct 131 ms 34828 KB Output is correct
11 Correct 218 ms 39120 KB Output is correct
12 Correct 209 ms 38084 KB Output is correct
13 Correct 219 ms 39936 KB Output is correct
14 Correct 119 ms 33116 KB Output is correct
15 Correct 11 ms 14532 KB Output is correct
16 Correct 8 ms 14548 KB Output is correct
17 Correct 9 ms 14548 KB Output is correct
18 Correct 9 ms 14548 KB Output is correct
19 Correct 9 ms 14548 KB Output is correct
20 Correct 11 ms 14588 KB Output is correct
21 Correct 10 ms 14540 KB Output is correct
22 Correct 11 ms 14548 KB Output is correct
23 Correct 9 ms 14564 KB Output is correct
24 Correct 9 ms 14552 KB Output is correct
25 Correct 9 ms 14532 KB Output is correct
26 Correct 9 ms 14544 KB Output is correct
27 Correct 9 ms 14420 KB Output is correct
28 Correct 8 ms 14540 KB Output is correct
29 Correct 10 ms 14632 KB Output is correct
30 Correct 9 ms 14564 KB Output is correct
31 Correct 11 ms 14664 KB Output is correct
32 Correct 10 ms 14548 KB Output is correct
33 Correct 9 ms 14584 KB Output is correct
34 Correct 25 ms 17320 KB Output is correct
35 Correct 208 ms 40116 KB Output is correct
36 Correct 183 ms 39356 KB Output is correct
37 Correct 232 ms 38332 KB Output is correct
38 Correct 182 ms 37272 KB Output is correct
39 Correct 201 ms 37424 KB Output is correct
40 Correct 169 ms 34744 KB Output is correct
41 Correct 198 ms 40488 KB Output is correct
42 Correct 192 ms 40252 KB Output is correct
43 Correct 117 ms 31676 KB Output is correct
44 Correct 201 ms 37692 KB Output is correct
45 Correct 134 ms 32324 KB Output is correct
46 Correct 182 ms 39476 KB Output is correct
47 Correct 192 ms 35272 KB Output is correct
48 Correct 156 ms 32196 KB Output is correct
49 Correct 74 ms 24048 KB Output is correct
50 Correct 62 ms 21808 KB Output is correct
51 Correct 101 ms 29360 KB Output is correct
52 Correct 216 ms 41732 KB Output is correct
53 Correct 191 ms 37588 KB Output is correct
54 Correct 279 ms 45344 KB Output is correct
55 Correct 136 ms 30268 KB Output is correct
56 Correct 170 ms 36252 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 9 ms 14336 KB Output is correct
4 Correct 9 ms 14468 KB Output is correct
5 Correct 10 ms 14536 KB Output is correct
6 Correct 9 ms 14608 KB Output is correct
7 Correct 10 ms 14604 KB Output is correct
8 Correct 9 ms 14548 KB Output is correct
9 Correct 131 ms 34828 KB Output is correct
10 Correct 218 ms 39120 KB Output is correct
11 Correct 209 ms 38084 KB Output is correct
12 Correct 219 ms 39936 KB Output is correct
13 Correct 119 ms 33116 KB Output is correct
14 Correct 145 ms 34856 KB Output is correct
15 Correct 245 ms 43852 KB Output is correct
16 Correct 239 ms 42896 KB Output is correct
17 Correct 241 ms 44488 KB Output is correct
18 Correct 173 ms 37444 KB Output is correct
19 Runtime error 152 ms 58788 KB Execution killed with signal 6
20 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 8 ms 14420 KB Output is correct
4 Correct 9 ms 14336 KB Output is correct
5 Correct 9 ms 14468 KB Output is correct
6 Correct 10 ms 14536 KB Output is correct
7 Correct 9 ms 14608 KB Output is correct
8 Correct 10 ms 14604 KB Output is correct
9 Correct 9 ms 14548 KB Output is correct
10 Correct 131 ms 34828 KB Output is correct
11 Correct 218 ms 39120 KB Output is correct
12 Correct 209 ms 38084 KB Output is correct
13 Correct 219 ms 39936 KB Output is correct
14 Correct 119 ms 33116 KB Output is correct
15 Correct 145 ms 34856 KB Output is correct
16 Correct 245 ms 43852 KB Output is correct
17 Correct 239 ms 42896 KB Output is correct
18 Correct 241 ms 44488 KB Output is correct
19 Correct 173 ms 37444 KB Output is correct
20 Runtime error 152 ms 58788 KB Execution killed with signal 6
21 Halted 0 ms 0 KB -