Submission #1112877

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1112877	2024-11-15 07:00:20	duyhoanho	Real Mountains (CCO23_day1problem2)	C++17	0 / 25	1 ms	336 KiB

Main

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#include<bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define fi first
#define se second
using namespace std;
const int N = 5e3 + 10 ,M = 1e6 + 3;
int n , h[N];
int peak,ans,cnt[N] , sum[N];
int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    #define task "task"
    if(fopen(task".inp","r"))
    {
        freopen(task".inp","r",stdin);
        freopen(task".out","w",stdout);
    }
    if(fopen("task.inp","r"))
    {
        freopen("task.inp","r",stdin);
        freopen("task.out","w",stdout);
    }
  cin >> n;
  for(int i = 1; i <=n;i++) sum[i] = i + sum[i - 1];
  for(int i = 1; i <= n; i++) cin >> h[i] , cnt[h[i]]++;
  for(int i = 1; i < n;i++){
    if(h[i + 1] > h[i]){
 
 
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Compilation message (stderr)

Main.cpp: In function 'int32_t main()':
Main.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen(task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:18:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         freopen(task".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:22:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |         freopen("task.inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:23:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |         freopen("task.out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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