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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4.  
  5.  
  6. int main(){
  7.  
  8.    ll n,q;
  9.    cin>>n>>q;
  10.    vector<ll>A(n+1);
  11.    for(int i=1;i<=n;i++)
  12.     cin>>A[i];
  13.  
  14.     vector<ll> dp(n+1);
  15.     for(int i=1;i<=n;i++){
  16.         dp[i] = i;
  17.     }
  18.     int i=2,l=1;
  19.     while(i<=n){
  20.  
  21.            while(i<=n and A[i]>=A[i-1]){
  22.                dp[i] = l;
  23.                i++;
  24.            }
  25.            while(i<=n and A[i]<=A[i-1]){
  26.                dp[i] = l;
  27.                i++;
  28.            }
  29.            l=i-1;
  30.     }
  31.     for(int i=1;i<=n;i++)
  32.         cout<<dp[i]<<" ";
  33.     cout<<endl;
  34.     while(q--){
  35.         int li,ri;
  36.         cin>>li>>ri;
  37.         if(li>=dp[ri])
  38.             cout<<"Yes"<<endl;
  39.         else
  40.             cout<<"No"<<endl;
  41.     }
  42.     return 0;
  43. }
  44.  
  45. /*
  46. 0 12
  47. 3 2 1 45 6 3 2 14 5 0
  48. 1 3
  49. 2 3
  50. 2 4
  51. 8 8
  52. 1 4
  53. 5 8
  54. 4 10
  55. 8 10
  56. 9 10
  57. 10 10
  58. 6 10
  59. 5 10
  60.  
  61. */
Runtime error #stdin #stdout #stderr 0s 4304KB
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Standard input is empty
stdout
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Standard output is empty
stderr
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terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
https://ideone.com/xz8U3q
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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