Submission #1060798

#	Time	Username	Problem	Language	Result	Execution time	Memory
1060798		TAhmed33	Aliens (IOI16_aliens)	C++98	Compilation error	0 ms	0 KiB

aliens

#include "aliens.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
//#include "grader.cpp"
const ll inf = 1e16;
typedef long double ld;
const ld eps = 1e-9;
inline ll sq (ll x) {
  return x * x;
}
struct CHT {
  deque <pair <ll, ll>> dd;
  void init () {
  }
  ld inter (pair <ll, ll> x, pair <ll, ll> y) {
    return 1.0 * (x.second - y.second) / (y.first - x.first);   
  }
  ll query (ll x) {
    while (dd.size() >= 2) {
      if (inter(dd[dd.size() - 1], dd[dd.size() - 2]) <= x) {
        break;
      }
      dd.pop_back();
    }
    return dd.back().first * x + dd.back().second;
  }
  void insert (ll x, ll y) {
    pair <ll, ll> g = {x, y};
    while (dd.size() >= 2 && inter(g, dd[0]) > inter(dd[0], dd[1]) + eps) {
      dd.pop_front();
    }
    dd.push_front(g);
  }
};
ll take_photos (int n, int m, int k, vector <int> r, vector <int> c) {
  array <ll, 2> a[n + 2];
  for (int i = 0; i < n; i++) {
    if (r[i] < c[i]) {
      swap(r[i], c[i]);
    }
    c[i]++; r[i]++;
    a[i + 1] = {c[i], r[i]};
  }
  sort(a + 1, a + n + 1, [&] (array <ll, 2> &x, array <ll, 2> &y) {
    return x[0] == y[0] ? x[1] > y[1] : x[0] < y[0];
  });
  ll mx = 0;
  array <ll, 2> b[n + 2];
  int d = 0;
  for (int i = 1; i <= n; i++) {
    if (mx >= a[i][1]) {
      continue;
    }
    b[++d] = a[i];
    mx = a[i][1];
  }
  n = d;
  ll dp[n + 2][k + 2] = {};
  for (int i = 1; i <= n; i++) {
    a[i] = b[i];
  }
  a[n + 1] = {m + 1, m + 1};
  for (int i = 1; i <= n; i++) {
    dp[i][0] = inf;
  }
  for (int j = 1; j <= k; j++) {
    CHT cur;
    cur.init();
    for (int i = n; i >= 1; i--) {
      cur.insert(-2 * a[i][1], sq(a[i][1]) + 2 * a[i][1] - sq(max(0ll, a[i][1] - a[i + 1][0] + 1)) + dp[i + 1][j - 1]);
      dp[i][j] = cur.query(a[i][0]) + sq(a[i][0]) - 2 * a[i][0] + 1;
    }#include "aliens.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
//#include "grader.cpp"
const ll inf = 1e16;
typedef long double ld;
const ld eps = 1e-9;
inline ll sq (ll x) {
  return x * x;
}
struct CHT {
  deque <pair <ll, ll>> dd;
  void init () {
  }
  ld inter (pair <ll, ll> x, pair <ll, ll> y) {
    return 1.0 * (x.second - y.second) / (y.first - x.first);   
  }
  ll query (ll x) {
    while (dd.size() >= 2) {
      if (inter(dd[dd.size() - 1], dd[dd.size() - 2]) <= x) {
        break;
      }
      dd.pop_back();
    }
    return dd.back().first * x + dd.back().second;
  }
  void insert (ll x, ll y) {
    pair <ll, ll> g = {x, y};
    while (dd.size() >= 2 && inter(g, dd[0]) > inter(dd[0], dd[1]) + eps) {
      dd.pop_front();
    }
    dd.push_front(g);
  }
};
ll take_photos (int n, int m, int k, vector <int> r, vector <int> c) {
  array <ll, 2> a[n + 2];
  for (int i = 0; i < n; i++) {
    if (r[i] < c[i]) {
      swap(r[i], c[i]);
    }
    c[i]++; r[i]++;
    a[i + 1] = {c[i], r[i]};
  }
  sort(a + 1, a + n + 1, [&] (array <ll, 2> &x, array <ll, 2> &y) {
    return x[0] == y[0] ? x[1] > y[1] : x[0] < y[0];
  });
  ll mx = 0;
  array <ll, 2> b[n + 2];
  int d = 0;
  for (int i = 1; i <= n; i++) {
    if (mx >= a[i][1]) {
      continue;
    }
    b[++d] = a[i];
    mx = a[i][1];
  }
  n = d;
  ll dp[n + 2][k + 2] = {};
  for (int i = 1; i <= n; i++) {
    a[i] = b[i];
  }
  a[n + 1] = {m + 1, m + 1};
  for (int j = 1; j <= k; j++) {
    CHT cur;
    cur.init();
    for (int i = n; i >= j; i--) {
      cur.insert(-2 * a[i][1], sq(a[i][1]) + 2 * a[i][1] - sq(max(0ll, a[i][1] - a[i + 1][0] + 1)) + dp[i + 1][j - 1]);
      dp[i][j] = cur.query(a[i][0]) + sq(a[i][0]) - 2 * a[i][0] + 1;
    }
  }
  return dp[1][k];
}
  }
  return dp[1][k];
}

Compilation message (stderr)

aliens.cpp:73:6: error: stray '#' in program
   73 |     }#include "aliens.h"
      |      ^
aliens.cpp: In function 'll take_photos(int, int, int, std::vector<int>, std::vector<int>)':
aliens.cpp:73:7: error: 'include' was not declared in this scope
   73 |     }#include "aliens.h"
      |       ^~~~~~~
aliens.cpp:81:21: error: a function-definition is not allowed here before '{' token
   81 | inline ll sq (ll x) {
      |                     ^
aliens.cpp: In member function 'void take_photos(int, int, int, std::vector<int>, std::vector<int>)::CHT::insert(ll, ll)':
aliens.cpp:102:70: error: use of local variable with automatic storage from containing function
  102 |     while (dd.size() >= 2 && inter(g, dd[0]) > inter(dd[0], dd[1]) + eps) {
      |                                                                      ^~~
aliens.cpp:80:10: note: 'const ld eps' declared here
   80 | const ld eps = 1e-9;
      |          ^~~
aliens.cpp: In function 'll take_photos(int, int, int, std::vector<int>, std::vector<int>)':
aliens.cpp:108:70: error: a function-definition is not allowed here before '{' token
  108 | ll take_photos (int n, int m, int k, vector <int> r, vector <int> c) {
      |                                                                      ^
aliens.cpp:78:10: warning: unused variable 'inf' [-Wunused-variable]
   78 | const ll inf = 1e16;
      |          ^~~