#include <bits/stdc++.h>
using namespace std;
#define int int64_t
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<vvi> vvvi;
typedef pair<int,int> ii;
typedef vector<ii> vii;
typedef vector<vii> vvii;
typedef vector<vvii> vvvii;
typedef vector<bool> vb;
typedef vector<vb> vvb;
#define x first
#define y second
#define pb push_back
#define loop(i,s,e) for(int i=s;i<e;i++)
#define loopr(i,s,e) for(int i=e-1;i>=s;i--)
#define chkmax(a,b) a=max(a,b)
#define chkmin(a,b) a=min(a,b)
#define all(a) a.begin(),a.end()
#define fast {ios_base::sync_with_stdio(false); cin.tie(0);}
const int inf = 1e11;
const int INF = 1e9;
const int mod = 1e9+7;
const int sz = 1e6;
int n,m,k;
int g[sz];
bool s[sz];
bool vis[sz];
vi adj[sz];
int cnt_s=0;
vi vals;
inline bool in_limits(int i, int j){
return (i>=0 && i<n && j>=0 && j<m);
}
void dfs(int v){
vis[v]=1;
if(!s[v]) vals.pb(g[v]);
else cnt_s++;
for(auto u:adj[v]){
if(vis[u]) continue;
dfs(u);
}
}
int32_t main() {
fast;
cin >> n >> m;
loop(i,0,n){
loop(j,0,m){
int v = i*m+j;
cin >> g[v];
s[v]=vis[v]=0;
}
}
cin >> k;
int ans=0;
loop(i,0,k){
int r,c; cin >> r >>c;
int v= r*m+c;
s[v]=true;
ans+=g[v];
vii d = {{-1,0}, {1,0}, {0,1}, {0,-1}};
for(auto it:d) {
int di = it.x, dj = it.y;
int ni = r + di, nj = c + dj;
int u = ni*m+nj;
if (!in_limits(ni, nj)) continue;
adj[v].pb(u);
adj[u].pb(v);
}
}
loop(r,0,n){
loop(c,0,m){
int v = r*m+c;
if(!vis[v] && s[v]){
cnt_s=0;
vals.clear();
dfs(v);
if(vals.size() < 3*cnt_s){
cout << "No";
return 0;
}
sort(all(vals));
loop(i,1,3*cnt_s+1) ans+=vals[vals.size()-i];
}
}
}
cout << ans;
return 0;
}
Compilation message
covering.cpp: In function 'int32_t main()':
covering.cpp:83:32: warning: comparison of integer expressions of different signedness: 'std::vector<long int>::size_type' {aka 'long unsigned int'} and 'int64_t' {aka 'long int'} [-Wsign-compare]
83 | if(vals.size() < 3*cnt_s){
| ~~~~~~~~~~~~^~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
23892 KB |
Output is correct |
2 |
Correct |
14 ms |
24092 KB |
Output is correct |
3 |
Correct |
23 ms |
24816 KB |
Output is correct |
4 |
Correct |
35 ms |
26716 KB |
Output is correct |
5 |
Correct |
85 ms |
33700 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
23892 KB |
Output is correct |
2 |
Correct |
14 ms |
24052 KB |
Output is correct |
3 |
Correct |
18 ms |
24712 KB |
Output is correct |
4 |
Correct |
31 ms |
26780 KB |
Output is correct |
5 |
Correct |
74 ms |
33688 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
23928 KB |
Output is correct |
2 |
Correct |
13 ms |
24020 KB |
Output is correct |
3 |
Correct |
18 ms |
24700 KB |
Output is correct |
4 |
Correct |
32 ms |
26784 KB |
Output is correct |
5 |
Correct |
75 ms |
33624 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
23772 KB |
Output is correct |
2 |
Correct |
13 ms |
23788 KB |
Output is correct |
3 |
Correct |
15 ms |
24276 KB |
Output is correct |
4 |
Correct |
14 ms |
24148 KB |
Output is correct |
5 |
Correct |
20 ms |
24924 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
23772 KB |
Output is correct |
2 |
Correct |
12 ms |
23764 KB |
Output is correct |
3 |
Correct |
12 ms |
23816 KB |
Output is correct |
4 |
Correct |
14 ms |
23788 KB |
Output is correct |
5 |
Correct |
14 ms |
23708 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
23892 KB |
Output is correct |
2 |
Correct |
14 ms |
24092 KB |
Output is correct |
3 |
Correct |
23 ms |
24816 KB |
Output is correct |
4 |
Correct |
35 ms |
26716 KB |
Output is correct |
5 |
Correct |
85 ms |
33700 KB |
Output is correct |
6 |
Correct |
12 ms |
23892 KB |
Output is correct |
7 |
Correct |
14 ms |
24052 KB |
Output is correct |
8 |
Correct |
18 ms |
24712 KB |
Output is correct |
9 |
Correct |
31 ms |
26780 KB |
Output is correct |
10 |
Correct |
74 ms |
33688 KB |
Output is correct |
11 |
Correct |
12 ms |
23928 KB |
Output is correct |
12 |
Correct |
13 ms |
24020 KB |
Output is correct |
13 |
Correct |
18 ms |
24700 KB |
Output is correct |
14 |
Correct |
32 ms |
26784 KB |
Output is correct |
15 |
Correct |
75 ms |
33624 KB |
Output is correct |
16 |
Correct |
13 ms |
23772 KB |
Output is correct |
17 |
Correct |
13 ms |
23788 KB |
Output is correct |
18 |
Correct |
15 ms |
24276 KB |
Output is correct |
19 |
Correct |
14 ms |
24148 KB |
Output is correct |
20 |
Correct |
20 ms |
24924 KB |
Output is correct |
21 |
Correct |
14 ms |
23912 KB |
Output is correct |
22 |
Correct |
17 ms |
24128 KB |
Output is correct |
23 |
Correct |
18 ms |
24764 KB |
Output is correct |
24 |
Correct |
31 ms |
26812 KB |
Output is correct |
25 |
Correct |
78 ms |
33672 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
23892 KB |
Output is correct |
2 |
Correct |
14 ms |
24092 KB |
Output is correct |
3 |
Correct |
23 ms |
24816 KB |
Output is correct |
4 |
Correct |
35 ms |
26716 KB |
Output is correct |
5 |
Correct |
85 ms |
33700 KB |
Output is correct |
6 |
Correct |
12 ms |
23892 KB |
Output is correct |
7 |
Correct |
14 ms |
24052 KB |
Output is correct |
8 |
Correct |
18 ms |
24712 KB |
Output is correct |
9 |
Correct |
31 ms |
26780 KB |
Output is correct |
10 |
Correct |
74 ms |
33688 KB |
Output is correct |
11 |
Correct |
12 ms |
23928 KB |
Output is correct |
12 |
Correct |
13 ms |
24020 KB |
Output is correct |
13 |
Correct |
18 ms |
24700 KB |
Output is correct |
14 |
Correct |
32 ms |
26784 KB |
Output is correct |
15 |
Correct |
75 ms |
33624 KB |
Output is correct |
16 |
Correct |
13 ms |
23772 KB |
Output is correct |
17 |
Correct |
13 ms |
23788 KB |
Output is correct |
18 |
Correct |
15 ms |
24276 KB |
Output is correct |
19 |
Correct |
14 ms |
24148 KB |
Output is correct |
20 |
Correct |
20 ms |
24924 KB |
Output is correct |
21 |
Correct |
12 ms |
23772 KB |
Output is correct |
22 |
Correct |
12 ms |
23764 KB |
Output is correct |
23 |
Correct |
12 ms |
23816 KB |
Output is correct |
24 |
Correct |
14 ms |
23788 KB |
Output is correct |
25 |
Correct |
14 ms |
23708 KB |
Output is correct |
26 |
Correct |
14 ms |
23912 KB |
Output is correct |
27 |
Correct |
17 ms |
24128 KB |
Output is correct |
28 |
Correct |
18 ms |
24764 KB |
Output is correct |
29 |
Correct |
31 ms |
26812 KB |
Output is correct |
30 |
Correct |
78 ms |
33672 KB |
Output is correct |
31 |
Correct |
331 ms |
59060 KB |
Output is correct |
32 |
Correct |
100 ms |
34744 KB |
Output is correct |
33 |
Correct |
86 ms |
35744 KB |
Output is correct |
34 |
Correct |
78 ms |
34580 KB |
Output is correct |
35 |
Correct |
168 ms |
46160 KB |
Output is correct |