Submission #300842

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
300842	2020-09-17T14:14:58 Z	BeanZ	Making Friends on Joitter is Fun (JOI20_joitter2)	C++14	1 / 100	5000 ms	31568 KB

joitter2

// I_LOVE_LPL
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define endl '\n'
const int N = 2e3 + 5;
ll dp[N][N], tmp[N][N];
ll ans = 0;
ll n;
void construct(ll u, ll v){
        vector<pair<ll, ll>> mem;
        if (dp[u][v] == 0) ans++;
        if (dp[v][u]){
                for (int j = 1; j <= n; j++){
                        if (j == u || j == v) continue;
                        ll cost = 0;
                        cost = cost + dp[j][u];
                        cost = cost + dp[j][v];
                        if (cost == 1){
                                if (dp[j][u] == 0) ans++, dp[j][u] = 1, mem.push_back({j, u});
                                if (dp[j][v] == 0) ans++, dp[j][v] = 1, mem.push_back({j, v});
                        }
                }
        }
        for (int j = 1; j <= n; j++){
                if (u == j || v == j) continue;
                if (dp[v][j] && dp[j][v] && dp[u][j] == 0){
                        ans++;
                        dp[u][j] = 1;
                        mem.push_back({u, j});
                }
        }
        dp[u][v] = 1;
        for (auto j : mem){
                construct(j.first, j.second);
        }
}
int main(){
        ios_base::sync_with_stdio(false);
        cin.tie(0);
        if (fopen("A.inp", "r")){
                freopen("test.inp", "r", stdin);
                freopen("test.out", "w", stdout);
        }
        ll m;
        cin >> n >> m;
        for (int i = 1; i <= m; i++){
                ll u, v;
                cin >> u >> v;
                construct(u, v);
                cout << ans << endl;
        }
}
/*
*/

Compilation message

joitter2.cpp: In function 'int main()':
joitter2.cpp:44:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   44 |                 freopen("test.inp", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
joitter2.cpp:45:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   45 |                 freopen("test.out", "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	2 ms	640 KB	Output is correct
8	Correct	2 ms	640 KB	Output is correct
9	Correct	2 ms	640 KB	Output is correct
10	Correct	1 ms	512 KB	Output is correct
11	Correct	1 ms	640 KB	Output is correct
12	Correct	1 ms	512 KB	Output is correct
13	Correct	1 ms	512 KB	Output is correct
14	Correct	1 ms	512 KB	Output is correct
15	Correct	1 ms	512 KB	Output is correct
16	Correct	1 ms	512 KB	Output is correct
17	Correct	1 ms	512 KB	Output is correct
18	Correct	1 ms	512 KB	Output is correct
19	Correct	1 ms	512 KB	Output is correct
20	Correct	1 ms	640 KB	Output is correct
21	Correct	2 ms	640 KB	Output is correct
22	Correct	2 ms	512 KB	Output is correct
23	Correct	2 ms	640 KB	Output is correct
24	Correct	2 ms	640 KB	Output is correct
25	Correct	2 ms	616 KB	Output is correct
26	Correct	1 ms	640 KB	Output is correct
27	Correct	1 ms	640 KB	Output is correct
28	Correct	1 ms	640 KB	Output is correct
29	Correct	1 ms	640 KB	Output is correct
30	Correct	1 ms	640 KB	Output is correct
31	Correct	2 ms	640 KB	Output is correct
32	Correct	2 ms	512 KB	Output is correct
33	Correct	2 ms	640 KB	Output is correct

Subtask #2
0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	2 ms	640 KB	Output is correct
8	Correct	2 ms	640 KB	Output is correct
9	Correct	2 ms	640 KB	Output is correct
10	Correct	1 ms	512 KB	Output is correct
11	Correct	1 ms	640 KB	Output is correct
12	Correct	1 ms	512 KB	Output is correct
13	Correct	1 ms	512 KB	Output is correct
14	Correct	1 ms	512 KB	Output is correct
15	Correct	1 ms	512 KB	Output is correct
16	Correct	1 ms	512 KB	Output is correct
17	Correct	1 ms	512 KB	Output is correct
18	Correct	1 ms	512 KB	Output is correct
19	Correct	1 ms	512 KB	Output is correct
20	Correct	1 ms	640 KB	Output is correct
21	Correct	2 ms	640 KB	Output is correct
22	Correct	2 ms	512 KB	Output is correct
23	Correct	2 ms	640 KB	Output is correct
24	Correct	2 ms	640 KB	Output is correct
25	Correct	2 ms	616 KB	Output is correct
26	Correct	1 ms	640 KB	Output is correct
27	Correct	1 ms	640 KB	Output is correct
28	Correct	1 ms	640 KB	Output is correct
29	Correct	1 ms	640 KB	Output is correct
30	Correct	1 ms	640 KB	Output is correct
31	Correct	2 ms	640 KB	Output is correct
32	Correct	2 ms	512 KB	Output is correct
33	Correct	2 ms	640 KB	Output is correct
34	Correct	12 ms	1024 KB	Output is correct
35	Execution timed out	5064 ms	31568 KB	Time limit exceeded
36	Halted	0 ms	0 KB	-

Subtask #3
0 / 83.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	2 ms	640 KB	Output is correct
8	Correct	2 ms	640 KB	Output is correct
9	Correct	2 ms	640 KB	Output is correct
10	Correct	1 ms	512 KB	Output is correct
11	Correct	1 ms	640 KB	Output is correct
12	Correct	1 ms	512 KB	Output is correct
13	Correct	1 ms	512 KB	Output is correct
14	Correct	1 ms	512 KB	Output is correct
15	Correct	1 ms	512 KB	Output is correct
16	Correct	1 ms	512 KB	Output is correct
17	Correct	1 ms	512 KB	Output is correct
18	Correct	1 ms	512 KB	Output is correct
19	Correct	1 ms	512 KB	Output is correct
20	Correct	1 ms	640 KB	Output is correct
21	Correct	2 ms	640 KB	Output is correct
22	Correct	2 ms	512 KB	Output is correct
23	Correct	2 ms	640 KB	Output is correct
24	Correct	2 ms	640 KB	Output is correct
25	Correct	2 ms	616 KB	Output is correct
26	Correct	1 ms	640 KB	Output is correct
27	Correct	1 ms	640 KB	Output is correct
28	Correct	1 ms	640 KB	Output is correct
29	Correct	1 ms	640 KB	Output is correct
30	Correct	1 ms	640 KB	Output is correct
31	Correct	2 ms	640 KB	Output is correct
32	Correct	2 ms	512 KB	Output is correct
33	Correct	2 ms	640 KB	Output is correct
34	Correct	12 ms	1024 KB	Output is correct
35	Execution timed out	5064 ms	31568 KB	Time limit exceeded
36	Halted	0 ms	0 KB	-

Submission #300842

Compilation message

Subtask #1 1.0 / 1.0

Subtask #2 0 / 16.0

Subtask #3 0 / 83.0

Subtask #1
1.0 / 1.0

Subtask #2
0 / 16.0

Subtask #3
0 / 83.0