Submission #1173916

#	Time	Username	Problem	Language	Result	Execution time	Memory
1173916		Zero_OP	Nile (IOI24_nile)	C++20	67 / 100	2092 ms	8200 KiB

nile

#include <bits/stdc++.h>

#ifndef LOCAL
      #include "nile.h"
#endif // LOCAL

using namespace std;

#define FOR(i, l, r) for(int i = (l); i < (r); ++i)
#define ROF(i, r, l) for(int i = (r)-1; i >= (l); --i)

#define mp make_pair
#define mt make_tuple
#define ff first
#define ss second

#define all(v) begin(v), end(v)
#define rall(v) rbegin(v), rend(v)
#define compact(v) v.erase(unique(all(v)), end(v))
#define sz(v) (int)v.size()
#define pb push_back
#define eb emplace_back

#define dbg(x) "[" #x " = " << (x) << "]"

template<typename T>
      bool minimize(T& a, const T& b){
            if(a > b) return a = b, true;
            return false;
      }

template<typename T>
      bool maximize(T& a, const T& b){
            if(a < b) return a = b, true;
            return false;
      }

using ll = long long;
using db = double;
using ull = unsigned long long;
using ld = long double;

using pi = pair<int, int>;
using pl = pair<ll, ll>;

using vi = vector<int>;
using vl = vector<ll>;
using vd = vector<db>;
using vc = vector<char>;
using vb = vector<bool>;

using vpi = vector<pi>;
using vpl = vector<pl>;

using vvi = vector<vi>;
using vvl = vector<vl>;

const int MAX = 1e5 + 5;

int N, W[MAX], A[MAX], B[MAX];

ll solve(int L, int R, int C){
      if(L > R) return 0;
      ll sum = 0;
      int stop = R;
      FOR(i, L+1, R+1){
            if(W[i] - W[i-1] > C){
                 sum += solve(i, R, C);
                 stop = i-1;
                 break;
            }
      }

      FOR(i, L, stop+1) sum += B[i];
      if((stop - L + 1) & 1 ^ 1){
            return sum;
      }

      int sub = 2e9;
      FOR(i, L, stop+1){
            if((i & 1) == (L & 1)) minimize(sub, A[i] - B[i]);
            else if(W[i+1] - W[i-1] <= C) minimize(sub, A[i] - B[i]);
      }
      return sum + sub;
}

vl calculate_costs(vi _W, vi _A, vi _B, vi E){
      N = sz(_W);
      int Q = sz(E);

      vpi queries(Q);
      FOR(i, 0, Q) queries[i] = mp(E[i], i);
      sort(all(queries));

      vector<tuple<int, int, int>> ord;
      FOR(i, 0, N) ord.pb(mt(_W[i], _A[i], _B[i]));
      sort(all(ord));
      FOR(i, 0, N) tie(W[i], A[i], B[i]) = ord[i];

      vl ans;
      FOR(i, 0, Q){
            ans.pb(solve(0, N-1, E[i]));
      }
      return ans;
}

#ifdef LOCAL

void setIO(){
      ios_base::sync_with_stdio(0); cin.tie(0);
#ifdef LOCAL
      freopen("task.inp", "r", stdin);
      freopen("task.out", "w", stdout);
#endif // LOCAL
}

int main(){
      setIO();

      int N;
      cin >> N;
      vi W(N), A(N), B(N);
      FOR(i, 0, N) cin >> W[i] >> A[i] >> B[i];

      int Q;
      cin >> Q;
      vi E(Q);
      FOR(i, 0, Q) cin >> E[i];

      vl costs = calculate_costs(W, A, B, E);
      FOR(i, 0, sz(costs)){
            cout << costs[i] << '\n';
      }

      return 0;
}
#endif //LOCAL

• Subtask 0: 0 / 0
• Subtask 1: 6 / 6
• Subtask 2: 13 / 13
• Subtask 3: 17 / 17
• Subtask 4: 11 / 11
• Subtask 5: 20 / 20
• Subtask 6: 0 / 15
• Subtask 7: 0 / 18