# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
393420 | vanic | UFO (IZhO14_ufo) | C++14 | 922 ms | 114732 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <vector>
#include <set>
#include <array>
using namespace std;
const int maxn=1e6+5;
typedef long long ll;
int n, m, r, k, p;
vector < int > poz;
struct tournament{
vector < int > t;
int pot;
tournament(int sz){
pot=sz/2;
while(sz--){
t.push_back(0);
}
}
void build(){
for(int x=pot-1; x>0; x--){
t[x]=max(t[x*2], t[x*2+1]);
}
}
void update(int x, int val){
t[x]+=val;
for(x>>=1; x>0; x>>=1){
t[x]=max(t[x*2], t[x*2+1]);
}
}
int query1(int L, int D, int x, int val, int puc){
if(x>=pot){
poz.push_back(x-pot);
return puc-1;
}
if(t[x*2]>=val){
puc=query1(L, (L+D)/2, x*2, val, puc);
if(!puc){
return 0;
}
}
if(t[x*2+1]>=val){
puc=query1((L+D)/2+1, D, x*2+1, val, puc);
}
return puc;
}
int query2(int L, int D, int x, int val, int puc){
if(x>=pot){
poz.push_back(x-pot);
return puc-1;
}
if(t[x*2+1]>=val){
puc=query2((L+D)/2+1, D, x*2+1, val, puc);
if(!puc){
return 0;
}
}
if(t[x*2]>=val){
puc=query2(L, (L+D)/2, x*2, val, puc);
}
return puc;
}
};
vector < tournament > R, S;
vector < vector < int > > l;
vector < vector < ll > > pref;
vector < int > vi;
vector < ll > vi1;
void scan(int &a){
a=0;
char c=getchar();
while(c<'0' || c>'9'){
c=getchar();
}
while(c>='0' && c<='9'){
a*=10;
a+=c-'0';
c=getchar();
}
}
int main(){
scan(n);
scan(m);
scan(r);
scan(k);
scan(p);
int a;
int pot1=1;
while(pot1<n){
pot1*=2;
}
tournament T1(pot1*2);
for(int i=0; i<m; i++){
S.push_back(T1);
}
int pot2=1;
while(pot2<m){
pot2*=2;
}
tournament T2(pot2*2);
for(int i=0; i<n; i++){
R.push_back(T2);
}
vi1.resize(m+1, 0);
for(int i=0; i<n; i++){
for(int j=0; j<m; j++){
scan(a);
R[i].t[j+pot2]=a;
S[j].t[i+pot1]=a;
vi.push_back(a);
}
pref.push_back(vi1);
l.push_back(vi);
vi.clear();
}
for(int i=0; i<n; i++){
R[i].build();
}
for(int i=0; i<m; i++){
S[i].build();
}
pref.push_back(vi1);
char c;
int b;
for(int i=0; i<k; i++){
do{
c=getchar();
}while(c<'A' || c>'Z');
scan(a);
scan(b);
a--;
if(c=='W'){
R[a].query1(0, pot2-1, 1, b, r);
for(int j=0; j<(int)poz.size(); j++){
R[a].update(poz[j]+pot2, -1);
S[poz[j]].update(a+pot1, -1);
l[a][poz[j]]--;
}
}
else if(c=='N'){
S[a].query1(0, pot1-1, 1, b, r);
for(int j=0; j<(int)poz.size(); j++){
R[poz[j]].update(a+pot2, -1);
S[a].update(poz[j]+pot1, -1);
l[poz[j]][a]--;
}
}
else if(c=='E'){
R[a].query2(0, pot2-1, 1, b, r);
for(int j=0; j<(int)poz.size(); j++){
R[a].update(poz[j]+pot2, -1);
S[poz[j]].update(a+pot1, -1);
l[a][poz[j]]--;
}
}
else{
S[a].query2(0, pot1-1, 1, b, r);
for(int j=0; j<(int)poz.size(); j++){
R[poz[j]].update(a+pot2, -1);
S[a].update(poz[j]+pot1, -1);
l[poz[j]][a]--;
}
}
poz.clear();
// printf("dalje\n");
}
// printf("kraj\n");
for(int i=0; i<n; i++){
for(int j=0; j<m; j++){
pref[i+1][j+1]=pref[i][j+1]+pref[i+1][j]-pref[i][j]+l[i][j];
}
}
ll maksi=0;
for(int i=p; i<=n; i++){
for(int j=p; j<=m; j++){
maksi=max(maksi, pref[i][j]-pref[i-p][j]-pref[i][j-p]+pref[i-p][j-p]);
}
}
printf("%lld\n", maksi);
return 0;
}
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
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