35 lines
843 B
C++
35 lines
843 B
C++
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#include <iostream>
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#include <algorithm>
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using std::cin,std::cout,std::max,std::iostream;
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constexpr size_t MAX_N {100+5};
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int n, arr[MAX_N], go_up[MAX_N], go_down[MAX_N], ans;
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int main(){
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iostream::sync_with_stdio(false),cin.tie(0),cout.tie(0);
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cin>>n;
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for(int i=0;i<n;i++){
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cin>>arr[i];
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go_up[i]=1,go_down[i]=1;
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}
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for(int i=0;i<n;i++){//j < i
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for(int j=i-1;j>=0;j--){
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if(arr[j]<arr[i] && go_up[i]<go_up[j]+1){
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go_up[i] = go_up[j]+1;
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}
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}
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}
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for(int i=n-1;i>=0;i--){//i < j
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for(int j=i+1;j<n;j++){
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if(arr[j]<arr[i] && go_down[i]<go_down[j]+1){
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go_down[i] = go_down[j] + 1;
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}
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}
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}
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for(int i=0;i<n;i++){
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ans = max(ans,go_down[i]+go_up[i]-1);
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}
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cout<<n-ans<<'\n';
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}
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