#include "treasure.h"
#include <algorithm>
#include <cctype>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#ifdef DEBUG
#include <time.h>
#endif
#define all(a) (a).begin(), (a).end()
#define rev(a) (a).rbegin(), (a).rend()
#define F first
#define S second
int recur_depth = 0;
#ifdef DEBUG
#define dbg(x) \
{ \
++recur_depth; \
auto x_ = x; \
--recur_depth; \
cerr << string(recur_depth, '\t') << "\e[91m" << __func__ << ":" \
<< __LINE__ << "\t" << #x << " = " << x_ << "\e[39m" << endl; \
}
#else
#define dbg(x)
#endif
using namespace std;
using namespace __gnu_pbds;
typedef pair<int, int> ii;
typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> llll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pair<int, int>> vii;
typedef vector<vii> vvii;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<pair<ll, ll>> vll;
typedef vector<vll> vvll;
typedef vector<bool> vb;
template <class type1>
using ordered_set = tree<type1, null_type, less<type1>, rb_tree_tag,
tree_order_statistics_node_update>;
template <typename A, typename B>
ostream &operator<<(ostream &os, const pair<A, B> &p) {
return os << '(' << p.first << ", " << p.second << ')';
}
template <typename T_container, typename T = typename enable_if<
!is_same<T_container, string>::value,
typename T_container::value_type>::type>
ostream &operator<<(ostream &os, const T_container &v) {
os << '{';
string sep;
for (const T &x : v)
os << sep << x, sep = ", ";
return os << '}';
}
const ll MOD = 1e9 + 7;
// const ll MOD = 998244353;
const ll INF = 1e9;
const ld EPS = 1e-9;
void findTreasure(int N) {
int n = N;
// #ifdef DEBUG
// cin >> n;
// vvi board(n, vi(n));
// for (vi &x : board)
// for (int &y : x)
// cin >> y;
// #else
// cin >> n;
// #endif
int mid = n / 2;
int count = 0;
map<pair<ii, ii>, int> cache;
auto query = [&](int r1, int c1, int r2, int c2) {
if (cache.count({{r1, c1}, {r2, c2}}))
return cache[{{r1, c1}, {r2, c2}}];
// count += 1 + n * n - (r2 - r1 + 1) * (c2 - c1 + 1);
int res = countTreasure(r1 + 1, c1 + 1, r2 + 1, c2 + 1);
// #ifdef DEBUG
// for (int i = r1; i <= r2; i++)
// for (int j = c1; j <= c2; j++)
// res += board[i][j];
// #else
// cout << r1 + 1 << " " << c1 + 1 << " " << r2 + 1 << " " << c2 + 1 <<
// endl; cin >> res; #endif
return cache[{{r1, c1}, {r2, c2}}] = res;
};
vvi tl(n, vi(n, -1)), tr(n, vi(n, -1)), bl(n, vi(n, -1)), br(n, vi(n, -1));
int total = query(0, 0, n - 1, n - 1);
for (int i = mid; i < n; i++)
for (int j = mid; j < n; j++)
tl[i][j] = query(0, 0, i, j);
for (int i = mid; i < n; i++)
for (int j = 0; j <= mid; j++)
tr[i][j] = query(0, j, i, n - 1);
for (int i = 0; i <= mid; i++)
for (int j = mid; j < n; j++)
bl[i][j] = query(i, 0, n - 1, j);
for (int i = 0; i <= mid; i++)
for (int j = 0; j <= mid; j++)
br[i][j] = query(i, j, n - 1, n - 1);
// cerr << count << "\n";
// cerr << fixed << setprecision(10)
// << ((ld)(n * n * n * n) * (ld)(7.0 / 16.0) + (ld)(n * n)) << "\n";
for (int i = n - 1; i >= mid; i--)
for (int j = mid - 1; j >= 0; j--)
tl[i][j] = tl[i][n - 1] - tr[i][j + 1];
for (int i = mid - 1; i >= 0; i--)
for (int j = n - 1; j >= mid; j--)
tl[i][j] = tl[n - 1][j] - bl[i + 1][j];
for (int i = mid - 1; i >= 0; i--)
for (int j = mid - 1; j >= 0; j--)
tl[i][j] = total - br[i + 1][0] - br[0][j + 1] + br[i + 1][j + 1];
// cout << "END" << endl;
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
int ans = tl[i][j];
if (i)
ans -= tl[i - 1][j];
if (j)
ans -= tl[i][j - 1];
if (i && j)
ans += tl[i - 1][j - 1];
if (ans)
Report(i + 1, j + 1);
// cout << ans;
}
// cout << endl;
}
}
// int main() {
// ios_base::sync_with_stdio(0);
// cin.tie(NULL);
//
// clock_t start = clock();
//
// int test_cases = 1;
// // cin >> test_cases;
//
// while (test_cases--)
// solve();
//
// #ifdef DEBUG
// cerr << fixed << setprecision(10)
// << "\nTime Taken: " << (double)(clock() - start) / CLOCKS_PER_SEC
// << "s\n";
// #endif
// return 0;
// }
Compilation message
treasure.cpp: In function 'void findTreasure(int)':
treasure.cpp:108:7: warning: unused variable 'count' [-Wunused-variable]
108 | int count = 0;
| ^~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct - N = 5, K = 289, score = 10 |
| 2 |
Correct |
0 ms |
388 KB |
Output is correct - N = 10, K = 4475, score = 10 |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct - N = 15, K = 22289, score = 10 |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct - N = 16, K = 28928, score = 10 |
| 5 |
Correct |
1 ms |
600 KB |
Output is correct - N = 55, K = 4005289, score = 10 |
| 6 |
Correct |
1 ms |
604 KB |
Output is correct - N = 66, K = 8305803, score = 10 |
| 7 |
Correct |
2 ms |
956 KB |
Output is correct - N = 77, K = 15383161, score = 10 |
| 8 |
Correct |
2 ms |
1112 KB |
Output is correct - N = 88, K = 26244416, score = 10 |
| 9 |
Correct |
3 ms |
1116 KB |
Output is correct - N = 99, K = 42032201, score = 10 |
| 10 |
Correct |
3 ms |
1116 KB |
Output is correct - N = 100, K = 43760000, score = 10 |
