Submission #1112878

#	Time	Username	Problem	Language	Result	Execution time	Memory
1112878		ntdaccode	Real Mountains (CCO23_day1problem2)	C++17	0 / 25	1 ms	336 KiB

Main

#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=1e9+7;
int n,h[N],kq = 0,aim = 0;
bool dd[N];
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];
  dd[h[1]] = true;
  aim = min(h[1],h[n]);
  for(int i = 2;i <= n - 1; i++) {
      int j = 0;
      for(int e = h[i];e < aim;e++) {
        if(j <= e) {
            j = e ;
            while(j <= aim) {
                j++;
                if(dd[j]) break;
            }
        }
        kq += e + j ;
      }
      dd[h[i]] = 1;
  }
  fori(i,0,100) dd[i] = 0;
  dd[h[n]] = 1;
  for(int i = n -1; i != 1; i--) {
      int j = 0;
      for(int e = h[i];e < aim;e++) {
        if(j <= e) {
            j = e ;
            while(j <= aim) {
                j++;
                if(dd[j]) break;
            }
        }

        kq +=  j ;
      }
      dd[h[i]] = 1;
  }
  cout << kq;
}

Compilation message (stderr)

Main.cpp: In function 'int32_t main()':
Main.cpp:21:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |     freopen("1.inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~
Main.cpp:22:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |     freopen("1.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~
Main.cpp:27:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |     freopen(task".inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:28:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     freopen(task".out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 3
• Subtask 2: 0 / 3
• Subtask 3: 0 / 3
• Subtask 4: 0 / 3
• Subtask 5: 0 / 4
• Subtask 6: 0 / 5
• Subtask 7: 0 / 4