oj.uz

Submission #248767

# Submission time Handle Problem Language Result Execution time Memory
248767 2020-07-13T10:29:18 Z proma T-Covering (eJOI19_covering) C++17
70 / 100
 977 ms 102404 KB 
#include <bits/stdc++.h>
#define endl "\n"
#define see(x) cerr<<#x<<"="<<x<<endl;

using namespace std;

const int32_t N = 1002;

int m, n, used[N*N], val[N*N], ans, k, cnt;
bool spec[N*N];
map <pair <int, int>, int> def;
vector <int> g[N*N], values;

void dfs (int v) {
	used[v] = 1;
	if (spec[v]) ++ cnt;
	else values.push_back(val[v]);

	for (auto i: g[v])
		if (!used[i]) dfs(i);
}

int32_t main () {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    cin >> m >> n;

    int temp = 1;
    for (int i = 0; i < m; ++ i)
    	for (int j = 0; j < n; ++ j) {
    		int a; cin >> a;
    		val[temp] = a;
    		def[{i, j}] = temp ++;
    	}

   	cin >> k;

   	for (int i = 0; i < k; ++ i) {
   		int x, y;
   		cin >> x >> y;
   		int t = def[{x,y}],
   		t1 = def[{x-1,y}],
   		t2 = def[{x,y-1}],
   		t3 = def[{x+1,y}],
   		t4 = def[{x,y+1}];
   		ans += val[t];
   		spec[t] = true;
   		if (x) {
   			g[t].push_back(t1);
   			g[t1].push_back(t);
   		}
   		if (y) {
   			g[t].push_back(t2);
   			g[t2].push_back(t);
   		}
   		if (x < m-1) {
   			g[t].push_back(t3);
   			g[t3].push_back(t);
   		}
   		if (y < n-1) {
   			g[t].push_back(t4);
   			g[t4].push_back(t);
   		}
   	}

   	temp = 1;
   	for (int i = 0; i < m; ++ i)
   		for (int j = 0; j < n; ++ j) {
   			if (!used[temp]) {
   				values.clear();
   				cnt = 0;
   				dfs(temp);
   				sort(values.rbegin(), values.rend());
   				if (3*cnt > values.size()) {
   					cout << "No\n";
   					return 0;
   				}
   				for (int k = 0; k < 3*cnt; ++ k)
   					ans += values[k];
   			}
   			++ temp;
   		}

   	cout << ans << endl;

    return 0;
}

Compilation message

covering.cpp: In function 'int32_t main()':
covering.cpp:30:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for (int i = 0; i < m; ++ i)
     ^~~
covering.cpp:37:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
     cin >> k;
     ^~~
covering.cpp:75:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
        if (3*cnt > values.size()) {
            ~~~~~~^~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 24704 KB Output is correct
2 Correct 23 ms 26112 KB Output is correct
3 Correct 54 ms 31096 KB Output is correct
4 Correct 132 ms 45432 KB Output is correct
5 Correct 413 ms 95480 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 24704 KB Output is correct
2 Correct 23 ms 26112 KB Output is correct
3 Correct 50 ms 31100 KB Output is correct
4 Correct 124 ms 45448 KB Output is correct
5 Correct 416 ms 95480 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 24704 KB Output is correct
2 Correct 23 ms 26112 KB Output is correct
3 Correct 49 ms 31096 KB Output is correct
4 Correct 134 ms 45560 KB Output is correct
5 Correct 411 ms 95480 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 24064 KB Output is correct
2 Correct 14 ms 24064 KB Output is correct
3 Correct 31 ms 27520 KB Output is correct
4 Correct 24 ms 26112 KB Output is correct
5 Correct 52 ms 31096 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23936 KB Output is correct
2 Correct 14 ms 23936 KB Output is correct
3 Correct 13 ms 23936 KB Output is correct
4 Correct 13 ms 23936 KB Output is correct
5 Correct 13 ms 23936 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 24704 KB Output is correct
2 Correct 23 ms 26112 KB Output is correct
3 Correct 54 ms 31096 KB Output is correct
4 Correct 132 ms 45432 KB Output is correct
5 Correct 413 ms 95480 KB Output is correct
6 Correct 17 ms 24704 KB Output is correct
7 Correct 23 ms 26112 KB Output is correct
8 Correct 50 ms 31100 KB Output is correct
9 Correct 124 ms 45448 KB Output is correct
10 Correct 416 ms 95480 KB Output is correct
11 Correct 17 ms 24704 KB Output is correct
12 Correct 23 ms 26112 KB Output is correct
13 Correct 49 ms 31096 KB Output is correct
14 Correct 134 ms 45560 KB Output is correct
15 Correct 411 ms 95480 KB Output is correct
16 Correct 14 ms 24064 KB Output is correct
17 Correct 14 ms 24064 KB Output is correct
18 Correct 31 ms 27520 KB Output is correct
19 Correct 24 ms 26112 KB Output is correct
20 Correct 52 ms 31096 KB Output is correct
21 Correct 16 ms 24704 KB Output is correct
22 Correct 24 ms 26232 KB Output is correct
23 Correct 50 ms 31096 KB Output is correct
24 Correct 128 ms 45372 KB Output is correct
25 Correct 409 ms 95608 KB Output is correct

Subtask #7
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 24704 KB Output is correct
2 Correct 23 ms 26112 KB Output is correct
3 Correct 54 ms 31096 KB Output is correct
4 Correct 132 ms 45432 KB Output is correct
5 Correct 413 ms 95480 KB Output is correct
6 Correct 17 ms 24704 KB Output is correct
7 Correct 23 ms 26112 KB Output is correct
8 Correct 50 ms 31100 KB Output is correct
9 Correct 124 ms 45448 KB Output is correct
10 Correct 416 ms 95480 KB Output is correct
11 Correct 17 ms 24704 KB Output is correct
12 Correct 23 ms 26112 KB Output is correct
13 Correct 49 ms 31096 KB Output is correct
14 Correct 134 ms 45560 KB Output is correct
15 Correct 411 ms 95480 KB Output is correct
16 Correct 14 ms 24064 KB Output is correct
17 Correct 14 ms 24064 KB Output is correct
18 Correct 31 ms 27520 KB Output is correct
19 Correct 24 ms 26112 KB Output is correct
20 Correct 52 ms 31096 KB Output is correct
21 Correct 13 ms 23936 KB Output is correct
22 Correct 14 ms 23936 KB Output is correct
23 Correct 13 ms 23936 KB Output is correct
24 Correct 13 ms 23936 KB Output is correct
25 Correct 13 ms 23936 KB Output is correct
26 Correct 16 ms 24704 KB Output is correct
27 Correct 24 ms 26232 KB Output is correct
28 Correct 50 ms 31096 KB Output is correct
29 Correct 128 ms 45372 KB Output is correct
30 Correct 409 ms 95608 KB Output is correct
31 Runtime error 977 ms 102404 KB Execution killed with signal 9 (could be triggered by violating memory limits)
32 Halted 0 ms 0 KB -