Submission #392490

#	Time	Username	Problem	Language	Result	Execution time	Memory
392490		hackermub	Palembang Bridges (APIO15_bridge)	C++17	22 / 100	60 ms	5976 KiB

bridge

#include<bits/stdc++.h>
using namespace std;

#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define float long double
#define pff pair<float,float>
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define all(v) v.begin(),v.end()
#define uid(a,b) uniform_int_distribution<int>(a,b)(rng)
#define forn(i,st,n,inc) for(int i=st;i<n;i+=inc)
#define rforn(i,st,n,inc) for(int i=st-1;i>=n;i-=inc)
#define bruh cout<<"\nbruh\n"; exit(0);
#define UB(v,x) upper_bound(all(v),x)
#define LB(v,x) lower_bound(all(v),x)
//mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
#define pi acos(-1)
const int MOD = 1e9+7;
const int64_t INF64 = INT64_MAX;
const int32_t INF32 = INT32_MAX;


ostream& operator<<(ostream& o,const string& s){
    for(auto c:s) o<<c;
    return o;
}

template<typename F,typename S>
ostream& operator<<(ostream& o,const pair<F,S>& p){
    o<<"["<<p.fi<<","<<p.se<<"]";
    return o;
}

template<typename... T,template<class...> class C>
ostream& operator<<(ostream& o,const C<T...>& v){
    o<<"[";
    int tot=0;
    for(auto x:v){ 
        o<<x;
        if(tot<v.size()-1) o<<",";
        tot++;
    }
    o<<"]";
    return o;
}

vector<string> vec_splitter(string s) {
    s += ',';
    vector<string> res;
    while(!s.empty()) {
        res.push_back(s.substr(0, s.find(',')));
        s = s.substr(s.find(',') + 1);
    }
    return res;
}
void debug_out(
vector<string> __attribute__ ((unused)) args,
__attribute__ ((unused)) int idx, 
__attribute__ ((unused)) int LINE_NUM) { cerr << endl; } 
template <typename Head, typename... Tail>
void debug_out(vector<string> args, int idx, int LINE_NUM, Head H, Tail... T) {
    if(idx > 0) cerr << ", "; else cerr << "Line(" << LINE_NUM << ") ";
    stringstream ss; ss << H;
    cerr << args[idx] << " = " << ss.str();
    debug_out(args, idx + 1, LINE_NUM, T...);
}

#ifdef OFFLINE
clock_t Tm=clock();
#define debug(...) //debug_out(vec_splitter(#__VA_ARGS__), 0, __LINE__, __VA_ARGS__)
#else
#define debug(...)
#endif

void init(){
    
}

void solve(){
    int k,n;
    cin>>k>>n;
    ll ans=0;
    vector<ll> P={0},Q={0};
    for(int i=0;i<n;i++){
        char a,b;
        ll x,y;
        cin>>a>>x>>b>>y;
        if(a==b) ans+=abs(x-y);
        else{
            if(a=='B'){
                swap(a,b);
                swap(x,y);
            }
            P.pb(x);
            Q.pb(y);
        }
    }
    sort(all(P));
    sort(all(Q));
    int m=size(P)-1;
    vector<ll> PP(m+1),QP(m+1);
    for(int i=1;i<=m;i++){
        PP[i]=PP[i-1]+P[i];
        QP[i]=QP[i-1]+Q[i];
    }
    debug(P,PP);
    debug(Q,QP);
    ans+=PP[m]+QP[m]+m;
    debug(m,ans);
    ll X,res=0,now;
    int lp,lq;
    for(int i=1;i<=m;i++){
        // zone A
        X = P[i];
        lp = i, lq = UB(Q,X) - begin(Q) -1;
        now = 2* (X*(lp+lq-m) - PP[lp] - QP[lq]);
        res = min(res , now);
        debug(now,ans+now,lp,lq);
        // zone B
        X = Q[i];
        lq = i, lp = UB(P,X) - begin(P) -1;
        now = 2* (X*(lp+lq-m) - PP[lp] - QP[lq]);
        res = min(res , now);
        debug(now,ans+now,lp,lq);
    }
    cout<<ans+res;
} 



int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie();
    //If you hack my code , You are gay
    init();
    int T=1;
    //cin>>T;
    //scanf("%d",&T);
    while(T--){
        solve();
        //cout<<"\n";
        //printf("\n");
    }
        //mara kha
    #ifdef OFFLINE
        //cerr<<"Time = "<<(double)(clock()-Tm)/CLOCKS_PER_SEC;
    #endif
    return 0;
}

• Subtask 1: 8 / 8
• Subtask 2: 14 / 14
• Subtask 3: 0 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37