#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#define black_tree tree<ll,null_type,less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update>
#define gp __gnu_pbds
#define INF 1000000000
#define MOD 1000000007
#define MAX 1000001
#define endl '\n'
#define ll long long
#define ld long double
#define lli long long int
#define ull unsigned long long
#define ulli unsigned long long int
#define pb push_back
#define pf push_front
#define ook order_of_key
#define fbo find_by_order
#define np next_permutation
#define mp make_pair
#define eb emplace_back
#define me max_element
#define lb lower_bound
#define ub upper_bound
#define bs binary_search
#define ff first
#define ss second
using namespace std;
using namespace gp;
vector<ll>val,g[MAX];
ll n,m,k,a,b,c,d,e,t=1,x,y,say,ans,node=1,v[MAX];
bool dp[MAX],used[MAX];
void dfs(ll s){
used[s]=true;
if(dp[s]){
say++;
}
else{
val.pb(v[s]);
}
for(int i=0;i<g[s].size();i++){
if(!used[g[s][i]]){
dfs(g[s][i]);
}
}
}
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin>>m>>n;
for(int i=1;i<=m;i++){
for(int j=1;j<=n;j++){
cin>>a;
v[t++]=a;
}
}
cin>>k;
for(int i=0;i<k;i++){
cin>>x>>y;
++x,++y;
a=(x-1)*n+y,b=(x-2)*n+y,c=(x-1)*n+y-1,d=x*n+y,e=(x-1)*n+y+1,ans+=v[a];
dp[a]=true;
if(x>1){
g[a].pb(b);
g[b].pb(a);
}
if(y>1){
g[a].pb(c);
g[c].pb(a);
}
if(x<m){
g[a].pb(d);
g[d].pb(a);
}
if(y<n){
g[a].pb(e);
g[e].pb(a);
}
}
for(int i=1;i<=m;i++){
for(int j=1;j<=n;j++){
if(!used[node]){
val.clear();
say=0;
dfs(node);
sort(val.rbegin(),val.rend());
if(3*say>val.size()){
cout<<"NO";
return 0;
}
for(int k=0;k<3*say;k++){
ans+=val[k];
}
}
node++;
}
}
cout<<ans;
}
Compilation message
covering.cpp: In function 'void dfs(long long int)':
covering.cpp:41:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
41 | for(int i=0;i<g[s].size();i++){
| ~^~~~~~~~~~~~
covering.cpp: In function 'int main()':
covering.cpp:88:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
88 | if(3*say>val.size()){
| ~~~~~^~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
23892 KB |
Output is correct |
2 |
Correct |
14 ms |
24148 KB |
Output is correct |
3 |
Correct |
20 ms |
25164 KB |
Output is correct |
4 |
Correct |
36 ms |
27932 KB |
Output is correct |
5 |
Correct |
88 ms |
37520 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
23892 KB |
Output is correct |
2 |
Incorrect |
16 ms |
24216 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
23960 KB |
Output is correct |
2 |
Correct |
15 ms |
24208 KB |
Output is correct |
3 |
Correct |
22 ms |
25172 KB |
Output is correct |
4 |
Correct |
34 ms |
27916 KB |
Output is correct |
5 |
Correct |
85 ms |
37448 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
23724 KB |
Output is correct |
2 |
Correct |
12 ms |
23816 KB |
Output is correct |
3 |
Correct |
15 ms |
24404 KB |
Output is correct |
4 |
Correct |
14 ms |
24212 KB |
Output is correct |
5 |
Correct |
19 ms |
25168 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
11 ms |
23816 KB |
Output is correct |
2 |
Incorrect |
15 ms |
23764 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
23892 KB |
Output is correct |
2 |
Correct |
14 ms |
24148 KB |
Output is correct |
3 |
Correct |
20 ms |
25164 KB |
Output is correct |
4 |
Correct |
36 ms |
27932 KB |
Output is correct |
5 |
Correct |
88 ms |
37520 KB |
Output is correct |
6 |
Correct |
12 ms |
23892 KB |
Output is correct |
7 |
Incorrect |
16 ms |
24216 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
23892 KB |
Output is correct |
2 |
Correct |
14 ms |
24148 KB |
Output is correct |
3 |
Correct |
20 ms |
25164 KB |
Output is correct |
4 |
Correct |
36 ms |
27932 KB |
Output is correct |
5 |
Correct |
88 ms |
37520 KB |
Output is correct |
6 |
Correct |
12 ms |
23892 KB |
Output is correct |
7 |
Incorrect |
16 ms |
24216 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |