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Submission #252991

# Submission time Handle Problem Language Result Execution time Memory
252991 2020-07-26T15:20:02 Z infinite_iq Duathlon (APIO18_duathlon) C++14
31 / 100
 927 ms 1048580 KB 
#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
using namespace std;
#define sqr 340
#define mp make_pair
#define mid (l+r)/2
#define le node * 2 
#define ri node * 2 + 1 
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define ins insert
#define era erase
#define C continue
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define mset multiset
#define all(x) x.begin(), x.end()
#define gc getchar_unlocked
typedef long long ll;
typedef short int si;
typedef long double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
typedef pair<double,ll>pdi;
const ll inf=1e18;
const ll mod=987654321;
const ld Pi=acos(-1);
ll n , m , ans , nodes , edges ;
vll v [100009] ;
ll dp [100009] , done [100009] ; ;
void calc ( int node ) {
        if ( done [node] ) return ;
        done [node] = 1 ;
        nodes ++ , edges += v [node] .size () ;
        for ( auto u : v [node] )
                calc ( u ) ;
}
void solve ( int node , int p ) {
        dp [node] = 1 ;
        for ( auto u : v [node] ) {
                if ( u == p ) C ;
                solve ( u , node ) ;
                dp [node] += dp [u] ;
        }
        ll sum = 0 , up = nodes - dp [node] ;
        for ( auto u : v [node] ) {
                if ( u == p ) C ;
                ans += up  * dp [u] * 2ll ;
                ans += sum * dp [u] * 2ll ;
                sum += dp [u] ;
        }
}
int main () {
        cin >> n >> m ;
        for ( int i = 0 ; i < m ; i ++ ) {
                int a , b ;
                cin >> a >> b ;
                a -- , b -- ;
                v [a] .pb ( b ) ;
                v [b] .pb ( a ) ;
        }
        for ( int i = 0 ; i < n ; i ++ ) {
                if ( done [i] ) C ;
                nodes = 0 , edges = 0 ;
                calc ( i ) ;
                if ( nodes * 2ll == edges ) {
                        if ( nodes >= 3ll ) {
                                ans += ( nodes ) * ( nodes - 1ll ) * ( nodes - 2ll ) ;
                        }
                }
                else
                        solve ( i , i ) ;
        }
        cout << ans << endl ;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 537 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 537 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 122 ms 9724 KB Output is correct
2 Correct 134 ms 9880 KB Output is correct
3 Correct 138 ms 10744 KB Output is correct
4 Correct 127 ms 10872 KB Output is correct
5 Correct 125 ms 10616 KB Output is correct
6 Correct 130 ms 11244 KB Output is correct
7 Correct 129 ms 10104 KB Output is correct
8 Correct 132 ms 10360 KB Output is correct
9 Correct 128 ms 9336 KB Output is correct
10 Correct 130 ms 9720 KB Output is correct
11 Correct 106 ms 8340 KB Output is correct
12 Correct 107 ms 8240 KB Output is correct
13 Correct 92 ms 8184 KB Output is correct
14 Correct 106 ms 8184 KB Output is correct
15 Correct 71 ms 7416 KB Output is correct
16 Correct 68 ms 7420 KB Output is correct
17 Correct 4 ms 4224 KB Output is correct
18 Correct 3 ms 4224 KB Output is correct
19 Correct 4 ms 4224 KB Output is correct
20 Correct 4 ms 4224 KB Output is correct
21 Correct 4 ms 4224 KB Output is correct
22 Correct 4 ms 4224 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 3 ms 2688 KB Output is correct
4 Correct 3 ms 2816 KB Output is correct
5 Correct 3 ms 2816 KB Output is correct
6 Correct 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 3 ms 2816 KB Output is correct
9 Correct 3 ms 2688 KB Output is correct
10 Correct 3 ms 2688 KB Output is correct
11 Correct 3 ms 2688 KB Output is correct
12 Correct 3 ms 2688 KB Output is correct
13 Correct 3 ms 2688 KB Output is correct
14 Correct 4 ms 2688 KB Output is correct
15 Correct 3 ms 2688 KB Output is correct
16 Correct 3 ms 2688 KB Output is correct
17 Correct 3 ms 2688 KB Output is correct
18 Correct 3 ms 2688 KB Output is correct
19 Correct 3 ms 2688 KB Output is correct
20 Correct 4 ms 2688 KB Output is correct

Subtask #5
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 143 ms 8184 KB Output is correct
2 Correct 137 ms 8440 KB Output is correct
3 Correct 156 ms 8456 KB Output is correct
4 Correct 127 ms 8440 KB Output is correct
5 Correct 128 ms 8440 KB Output is correct
6 Correct 137 ms 12152 KB Output is correct
7 Correct 149 ms 11384 KB Output is correct
8 Correct 136 ms 10488 KB Output is correct
9 Correct 133 ms 9848 KB Output is correct
10 Correct 125 ms 8440 KB Output is correct
11 Correct 131 ms 8440 KB Output is correct
12 Correct 127 ms 8440 KB Output is correct
13 Correct 124 ms 8440 KB Output is correct
14 Correct 110 ms 8316 KB Output is correct
15 Correct 101 ms 8056 KB Output is correct
16 Correct 62 ms 7160 KB Output is correct
17 Correct 105 ms 8704 KB Output is correct
18 Correct 111 ms 8680 KB Output is correct
19 Correct 120 ms 8672 KB Output is correct
20 Correct 121 ms 8680 KB Output is correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2688 KB Output is correct
2 Correct 3 ms 2688 KB Output is correct
3 Runtime error 665 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 8184 KB Output is correct
2 Correct 126 ms 8312 KB Output is correct
3 Runtime error 927 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 537 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 537 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -