# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
342893 | chon | Treasure (different grader from official contest) (CEOI13_treasure2) | C++14 | 0 ms | 0 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 "treasure.h"
#include <bits/stdc++.h>
using namespace std;
//#define pb push_back
//#define ii pair<int,int>
typedef struct
{
int key[4];
unsigned long data;
}Hash;
Hash tb[MAX_TABLE];
unsigned long hash(const char *str)
{
unsigned long hash = 5381;
int c;
while (c = *str++)
{
hash = (((hash << 5) + hash) + c) % MAX_TABLE;
}
return hash % MAX_TABLE;
}
int find(const char *key, char *data)
{
unsigned long h = hash(key);
int cnt = MAX_TABLE;
while (tb[h].key[0] != 0 && cnt--)
{
if (strcmp(tb[h].key, key) == 0)
{
strcpy(data, tb[h].data);
return 1;
}
h = (h + 1) % MAX_TABLE;
}
return 0;
}
int add(const char *key, char *data)
{
unsigned long h = hash(key);
while (tb[h].key[0] != 0)
{
if (strcmp(tb[h].key, key) == 0)
{
return 0;
}
h = (h + 1) % MAX_TABLE;
}
strcpy(tb[h].key, key);
strcpy(tb[h].data, data);
return 1;
}
int ans[105][105];
int HOR[105], VER[105];
int area, included, line, ri, le;
//map< tuple<int, int, int, int>, int > dp;
int askit(int r1, int c1, int r2, int c2){
tuple<int,int,int,int> tup(r1, c1, r2, c2);
if (dp.find(tup) != dp.end() ) return dp[tup];
return dp[tup] = countTreasure(r1, c1, r2, c2);
}
int f(vector< pair<int,int> > v, int r, int c, int N){
int result = 0, knew = 0, red = 0, want = 0;
if (v[3].second == 'A'){
for (int i=1; i<=r-1; i++){
for (int j=1; j<=c; j++){
knew += ans[i][j];
}
}
red = askit(1, 1, r, c);
want = red - knew;
knew = 0;
for (int j=1; j<=c - 1; j++) knew += ans[r][j];
result = want - knew;
}else if (v[3].second == 'B'){
for (int i=1; i<=r-1; i++){
for (int j=c+1; j<=N; j++){
knew += ans[i][j];
}
}
if (c+1 <= N) red = askit(1, c+1, r, N);
want = red - knew;
result = included - want;
}else if (v[3].second == 'C'){
for (int i=1; i<=r-1; i++){
for (int j=c+1; j<=N; j++){
knew += ans[i][j];
}
}
knew = ri - knew;
if (c+1 <= N && r+1 <= N) red = askit(r+1, c+1, N, N);
want = knew - red;
result = included - want;
}else{ // D
for (int i=1; i<=r-1; i++){
for (int j=1; j<=c; j++){
knew += ans[i][j];
}
}
knew = le - knew;
if (r+1 <= N) red = askit(r+1, 1, N, c);
want = knew - red;
knew = 0;
for (int j=1; j<=c - 1; j++) knew += ans[r][j];
result = want - knew;
}
return result;
}
void findTreasure (int N) {
//int cnt = countTreasure(1, 1, N, N);
//if(cnt > 0) Report (1, 1);
area = askit(1, 1, N, N);
for (int i=1; i<=N - 1; i++){
if ( i > (N-i) ) VER[i] = askit(1, 1, i, N);
else VER[i] = area - askit(i+1, 1, N, N);
}
for (int i=1; i<=N - 1; i++){
if ( i > (N-i) ) HOR[i] = askit(1, 1, N, i);
else HOR[i] = area - askit(1, i+1, N, N);
}
VER[N] = HOR[N] = area;
for (int i=1; i<=N; i++){
for (int j=1; j<=N; j++){
int below = VER[N] - VER[i];
int sup = VER[i-1];
line = area - sup - below;
included = line;
for (int k=1; k<j; k++) included -= ans[i][k];
ri = HOR[N] - HOR[j];
le = HOR[j];
vector< pair<int, int> > srt;
int dx, dy;
dx = j, dy = i;
srt.pb(ii(dx*dy, 'A'));
dx = N - j, dy = i;
srt.pb(ii(dx*dy, 'B'));
dx = N - j, dy = N - i;
srt.pb(ii(dx*dy, 'C'));
dx = j, dy = N - i;
srt.pb(ii(dx*dy, 'D'));
sort(srt.begin(), srt.end());
ans[i][j] = f(srt, i, j, N);
}
}
for (int i=1; i<=N; i++){
for (int j=1; j<=N; j++){
if (ans[i][j]) Report(i,j);
}
}
}