Submission #633528

#	Time	Username	Problem	Language	Result	Execution time	Memory
633528		Ahmed57	Global Warming (NOI13_gw)	C++14	Compilation error	0 ms	0 KiB

gw

#include <bits/stdc++.h>

using namespace std;
long long n;
int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    cin>>n;
    vector<long long> v,w;v.push_back(2);
    map<int,int> sa;
    for(int i = 0;i<n;i++){
        int x;cin>>x;
        w.push_back(x);
        sa[x]++;
    }
    int z = 2;
    map<int,int>cmp;
    for(auto i:sa){
        cmp[i.first] = z++;
    }
    for(int i = 0;i<n;i++){
        v.push_back(cmp[w[i]]*2);
    }
    long long pre[(n+2)*2]={0};
    for(int i = 0;i<n;i++){
        if(v[i]<v[i+1]){
            pre[v[i+1]]--;
            pre[v[i]]++;
        }
    }
    long long ma = 0 , cur = 0;
    for(int i = 2;i<=cmp[so[n-1]]*2;i++){
        cur+=pre[i];
        ma = max(ma,cur);
    }
    cout<<ma<<"\n";
}

Compilation message (stderr)

gw.cpp: In function 'int main()':
gw.cpp:31:26: error: 'so' was not declared in this scope; did you mean 'sa'?
   31 |     for(int i = 2;i<=cmp[so[n-1]]*2;i++){
      |                          ^~
      |                          sa