oj.uz

답안 #1113311

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1113311 2024-11-16T11:01:42 Z ntdaccode Real Mountains (CCO23_day1problem2) C++17
6 / 25
 295 ms 112712 KB 
#include<bits/stdc++.h>
#define fori(i,a,b) for(int i = a;i <= b; i++)
#define int long long
#define pb push_back
using namespace std;

typedef pair<int,int> ii;
typedef tuple<int,int,int> tp;

const int M = 1e6 + 10;
const int N = 5e3 + 10;
const int mod = 1e6 + 3;

int n,h[N];
int target[N];
vector<int> Q[N];
vector<int> rrh;

int calc(int l,int r) {
  int x = l + r;
  int y = r - l + 1;
  if(x % 2 == 0) {
    x /= 2;
    x %= mod;
    y %= mod;
    return (x * y) % mod;
  }
  y /= 2;
  x %= mod;
  y %= mod;
  return (x * y) % mod;
}
int len(int i) {
  int x = rrh[i + 1] % mod;
  int y = rrh[i] % mod;
  return (x - y + mod ) % mod;
}
int add(int a,int b) {
  a %= mod;
  b %= mod;
  return (a + b) % mod;
}

int32_t main()
{
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  if(fopen("1.inp","r"))
  {
    freopen("1.inp","r",stdin);
    freopen("1.out","w",stdout);
  }
  #define task ""
  if(fopen(task".inp","r"))
  {
    freopen(task".inp","r",stdin);
    freopen(task".out","w",stdout);
  }
  cin >> n;
  for(int i = 1;i <= n; i++) cin >> h[i];

  int suf = 0,pre = 0;
  for(int i = 1;i <= n; i++) {
    pre = max(pre, h[i]);
    target[i] =  pre ;
  }
  for(int i = n; i != 0; i--) {
    suf = max(suf, h[i]);
    target[i] = min(target[i], suf);
  }

  for(int i = 1;i <= n; i++) rrh.pb(h[i]);
  sort(rrh.begin(),rrh.end());
  rrh.resize(unique (rrh.begin(), rrh.end()) - rrh.begin());
  for(int i = 1;i <= n; i++) {
      h[i] = lower_bound(rrh.begin(),rrh.end(),h[i]) - rrh.begin() ;
      target[i] = lower_bound(rrh.begin(),rrh.end(),target[i]) - rrh.begin() ;
      //cout << h[i] << " " << target[i] << "\n";
  }

  for(int i = 1;i <= n; i++) {
    if(h[i] != target[i]) {
      Q[h[i]].pb(i);
    }
  }
  int kq = 0;
  int m = rrh.size();
  for(int high = 0;high <= m - 2; high++) {
    if(Q[high].size() == 0) continue;
    if(Q[high].size() == 1) {

      int x = 1e9 , y = 1e9 , cur = Q[high][0];
      for(int j = 1; j < cur; j++) {
        if(h[j] > h[cur]) x = min(x,rrh[h[j]]);
      }
      for(int j = cur + 1; j <= n ;j++) {
        if(h[j] > h[cur]) y = min(y,rrh[h[j]]);
      }
      kq = ( (kq + len(high) * add(x,y) % mod) % mod + calc(rrh[high],rrh[high + 1] - 1) ) % mod;
      h[cur]++;
      if(h[cur] != target[cur]) Q[h[cur]].pb(cur);


    }
    else {
      sort(Q[high].begin(),Q[high].end());
      int pre_l = 1e9 , pre_r = 1e9 , suf_l = 1e9 , suf_r = 1e9;
      int l = Q[high][0], r = Q[high].back();
      for(int j = 1;j < l ; j++) {
        if(h[j] > h[l]) pre_l = min(pre_l,rrh[h[j]]);
      }
      for(int j = l + 1;j <= n; j++) {
        if(h[j] > h[l]) suf_l = min(suf_l,rrh[h[j]]);
      }
      for(int j = 1; j < r; j++) {
        if(h[j] > h[r]) pre_r = min(pre_r,rrh[h[j]]);
      }
      for(int j = r + 1;j <= n; j++) {
        if(h[j] > h[r]) suf_r = min(suf_r,rrh[h[j]]);
      }

//      cout << Q[high].size() << " " << pre_l << " " << suf_l << " " << pre_r << " " << suf_r << "\n";
//      cout << rrh[high] << " " << rrh[high + 1] << " ";
//      cout << calc(rrh[high],rrh[high + 1] - 1) << " ";
//      cout << calc(rrh[high] + 1,rrh[high + 1]) << "\n";

      pre_l %= mod;
      pre_r %= mod;
      suf_l %= mod;
      suf_r %= mod;
      int x = ( ( (len(high) * add(pre_l,suf_l) % mod + 2ll * calc(rrh[high],rrh[high + 1] - 1ll) % mod) % mod +
                calc(rrh[high] + 1ll,rrh[high + 1]) ) % mod + (rrh[high + 1] - rrh[high]) * suf_r % mod ) % mod;
      int y = ( ( (len(high) * add(pre_r,suf_r) % mod + 2ll * calc(rrh[high],rrh[high + 1] - 1ll) % mod) % mod +
                calc(rrh[high] + 1ll,rrh[high + 1]) ) % mod + (rrh[high + 1] - rrh[high]) * pre_l % mod ) % mod;

      kq = (kq + min(x,y)) % mod;
      //cout << kq << " ";
      int sz = Q[high].size();
      kq = (kq + ( (sz - 2ll) * ( ( calc(rrh[high],rrh[high + 1] - 1ll) + 2ll * calc(rrh[high] + 1ll ,rrh[high+1]) % mod ) % mod) % mod) % mod ) % mod;
      for(int idx : Q[high]) {
          h[idx]++;
          if(h[idx] != target[idx]) Q[h[idx]].pb(idx);
      }
    }
  }

  cout << kq % mod;
}

Compilation message

Main.cpp: In function 'int32_t main()':
Main.cpp:51:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |     freopen("1.inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~
Main.cpp:52:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |     freopen("1.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~
Main.cpp:57:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   57 |     freopen(task".inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:58:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   58 |     freopen(task".out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 14 ms 3092 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 1 ms 592 KB Output is correct
8 Correct 2 ms 760 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 16 ms 2896 KB Output is correct
12 Correct 7 ms 2896 KB Output is correct

Subtask #2
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 14 ms 3092 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 1 ms 592 KB Output is correct
8 Correct 2 ms 760 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 16 ms 2896 KB Output is correct
12 Correct 7 ms 2896 KB Output is correct
13 Correct 18 ms 3108 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 20 ms 3008 KB Output is correct
17 Correct 16 ms 2896 KB Output is correct
18 Correct 16 ms 2896 KB Output is correct
19 Correct 16 ms 2896 KB Output is correct
20 Correct 4 ms 848 KB Output is correct
21 Correct 4 ms 848 KB Output is correct
22 Correct 3 ms 848 KB Output is correct
23 Correct 15 ms 2896 KB Output is correct
24 Correct 15 ms 3040 KB Output is correct
25 Correct 14 ms 3036 KB Output is correct
26 Correct 13 ms 2640 KB Output is correct
27 Correct 12 ms 2896 KB Output is correct
28 Correct 12 ms 2896 KB Output is correct
29 Correct 1 ms 352 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 1 ms 388 KB Output is correct
33 Correct 2 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct

Subtask #3
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 14 ms 3092 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 1 ms 592 KB Output is correct
8 Correct 2 ms 760 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 16 ms 2896 KB Output is correct
12 Correct 7 ms 2896 KB Output is correct
13 Correct 18 ms 3108 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 20 ms 3008 KB Output is correct
17 Correct 16 ms 2896 KB Output is correct
18 Correct 16 ms 2896 KB Output is correct
19 Correct 16 ms 2896 KB Output is correct
20 Correct 4 ms 848 KB Output is correct
21 Correct 4 ms 848 KB Output is correct
22 Correct 3 ms 848 KB Output is correct
23 Correct 15 ms 2896 KB Output is correct
24 Correct 15 ms 3040 KB Output is correct
25 Correct 14 ms 3036 KB Output is correct
26 Correct 13 ms 2640 KB Output is correct
27 Correct 12 ms 2896 KB Output is correct
28 Correct 12 ms 2896 KB Output is correct
29 Correct 1 ms 352 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 1 ms 388 KB Output is correct
33 Correct 2 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 290 ms 112656 KB Output is correct
36 Incorrect 295 ms 112712 KB Output isn't correct
37 Halted 0 ms 0 KB -

Subtask #4
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 14 ms 3092 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 1 ms 592 KB Output is correct
8 Correct 2 ms 760 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 16 ms 2896 KB Output is correct
12 Correct 7 ms 2896 KB Output is correct
13 Correct 18 ms 3108 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 20 ms 3008 KB Output is correct
17 Correct 16 ms 2896 KB Output is correct
18 Correct 16 ms 2896 KB Output is correct
19 Correct 16 ms 2896 KB Output is correct
20 Correct 4 ms 848 KB Output is correct
21 Correct 4 ms 848 KB Output is correct
22 Correct 3 ms 848 KB Output is correct
23 Correct 15 ms 2896 KB Output is correct
24 Correct 15 ms 3040 KB Output is correct
25 Correct 14 ms 3036 KB Output is correct
26 Correct 13 ms 2640 KB Output is correct
27 Correct 12 ms 2896 KB Output is correct
28 Correct 12 ms 2896 KB Output is correct
29 Correct 1 ms 352 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 1 ms 388 KB Output is correct
33 Correct 2 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 290 ms 112656 KB Output is correct
36 Incorrect 295 ms 112712 KB Output isn't correct
37 Halted 0 ms 0 KB -

Subtask #5
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 14 ms 3092 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 1 ms 592 KB Output is correct
8 Correct 2 ms 760 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 16 ms 2896 KB Output is correct
12 Correct 7 ms 2896 KB Output is correct
13 Correct 18 ms 3108 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 20 ms 3008 KB Output is correct
17 Correct 16 ms 2896 KB Output is correct
18 Correct 16 ms 2896 KB Output is correct
19 Correct 16 ms 2896 KB Output is correct
20 Correct 4 ms 848 KB Output is correct
21 Correct 4 ms 848 KB Output is correct
22 Correct 3 ms 848 KB Output is correct
23 Correct 15 ms 2896 KB Output is correct
24 Correct 15 ms 3040 KB Output is correct
25 Correct 14 ms 3036 KB Output is correct
26 Correct 13 ms 2640 KB Output is correct
27 Correct 12 ms 2896 KB Output is correct
28 Correct 12 ms 2896 KB Output is correct
29 Correct 1 ms 352 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 1 ms 388 KB Output is correct
33 Correct 2 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Incorrect 2 ms 592 KB Output isn't correct
36 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 14 ms 3092 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 1 ms 592 KB Output is correct
8 Correct 2 ms 760 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 16 ms 2896 KB Output is correct
12 Correct 7 ms 2896 KB Output is correct
13 Correct 18 ms 3108 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 20 ms 3008 KB Output is correct
17 Correct 16 ms 2896 KB Output is correct
18 Correct 16 ms 2896 KB Output is correct
19 Correct 16 ms 2896 KB Output is correct
20 Correct 4 ms 848 KB Output is correct
21 Correct 4 ms 848 KB Output is correct
22 Correct 3 ms 848 KB Output is correct
23 Correct 15 ms 2896 KB Output is correct
24 Correct 15 ms 3040 KB Output is correct
25 Correct 14 ms 3036 KB Output is correct
26 Correct 13 ms 2640 KB Output is correct
27 Correct 12 ms 2896 KB Output is correct
28 Correct 12 ms 2896 KB Output is correct
29 Correct 1 ms 352 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 1 ms 388 KB Output is correct
33 Correct 2 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 290 ms 112656 KB Output is correct
36 Incorrect 295 ms 112712 KB Output isn't correct
37 Halted 0 ms 0 KB -

Subtask #7
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 14 ms 3092 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 1 ms 592 KB Output is correct
8 Correct 2 ms 760 KB Output is correct
9 Correct 1 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 16 ms 2896 KB Output is correct
12 Correct 7 ms 2896 KB Output is correct
13 Correct 18 ms 3108 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 20 ms 3008 KB Output is correct
17 Correct 16 ms 2896 KB Output is correct
18 Correct 16 ms 2896 KB Output is correct
19 Correct 16 ms 2896 KB Output is correct
20 Correct 4 ms 848 KB Output is correct
21 Correct 4 ms 848 KB Output is correct
22 Correct 3 ms 848 KB Output is correct
23 Correct 15 ms 2896 KB Output is correct
24 Correct 15 ms 3040 KB Output is correct
25 Correct 14 ms 3036 KB Output is correct
26 Correct 13 ms 2640 KB Output is correct
27 Correct 12 ms 2896 KB Output is correct
28 Correct 12 ms 2896 KB Output is correct
29 Correct 1 ms 352 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 1 ms 388 KB Output is correct
33 Correct 2 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 290 ms 112656 KB Output is correct
36 Incorrect 295 ms 112712 KB Output isn't correct
37 Halted 0 ms 0 KB -