Submission #117832

#	Time	Username	Problem	Language	Result	Execution time	Memory
117832		JohnTitor	Coin Collecting (JOI19_ho_t4)	C++11	0 / 100	2 ms	484 KiB

joi2019_ho_t4

#include <bits/stdc++.h>
using namespace std;
#define FOR(i, j, k) for(int i=(j); i<=(k); i++)
#define FFOR(i, j, k) for(int i=(j); i<(k); i++)
#define DFOR(i, j, k) for(int i=(j); i>=(k); i--)
#define bug(x) cerr<<#x<<" = "<<(x)<<'\n'
#define pb push_back
#define mp make_pair
#define bit(s, i) (((s)>>(i))&1LL)
#define mask(i) ((1LL<<(i)))
#define builtin_popcount __builtin_popcountll
#define __builtin_popcount __builtin_popcountll
using ll=long long; using ld=long double;
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count()); const ld pi=acos(0)*2;
template <typename T> inline void read(T &x){char c; bool nega=0; while((!isdigit(c=getchar()))&&(c!='-')); if(c=='-'){nega=1; c=getchar();} x=c-48; while(isdigit(c=getchar())) x=x*10+c-48; if(nega) x=-x;}
template <typename T> inline void writep(T x){if(x>9) writep(x/10); putchar(x%10+48);}
template <typename T> inline void write(T x){if(x<0){ putchar('-'); x=-x;} writep(x);}
template <typename T> inline void writeln(T x){write(x); putchar('\n');}
#define taskname "Coin"
int n;
int x[200001];
int y[200001];
vector <int> top;
vector <int> bot;
int main(){
    #ifdef Aria
        if(fopen(taskname".in", "r"))
            freopen(taskname".in", "r", stdin);
    #endif // Aria
    read(n);
    FOR(i, 1, n*2) read(x[i]), read(y[i]);
    ll ans=0;
    FOR(i, 1, n*2){
        if(x[i]<1){
            ans+=1-x[i];
            x[i]=1;
        }
        else if(x[i]>n){
            ans+=x[i]-n;
            x[i]=n;
        }
        if(y[i]<1){
            ans+=1-y[i];
            y[i]=1;
        }
        else if(y[i]>2){
            ans+=y[i]-2;
            y[i]=2;
        }
    }
    FOR(i, 1, n*2) if(y[i]==1) top.pb(x[i]);
    else bot.pb(x[i]);
    sort(top.begin(), top.end());
    reverse(top.begin(), top.end());
    sort(bot.begin(), bot.end());
    reverse(bot.begin(), bot.end());
    FOR(i, 1, n){
        int c0=0, c1=0;
        FOR(x, 1, 2){
            if(top.empty()){
                ans+=abs(bot.back()-i);
                bot.pop_back();
                c1++;
            }
            else if(bot.empty()){
                ans+=abs(top.back()-i);
                top.pop_back();
                c0++;
            }
            else{
                bool sw=0;
                if(top.back()<bot.back()){
                    ans+=abs(top.back()-i);
                    top.pop_back();
                    c0++;
                }
                else if(top.back()>bot.back()){
                    ans+=abs(bot.back()-i);
                    bot.pop_back();
                    c1++;
                }
                else{
                    if(c0){
                        ans+=abs(bot.back()-i);
                        bot.pop_back();
                        c1++;
                    }
                    else{
                        ans+=abs(top.back()-i);
                        top.pop_back();
                        c0++;
                    }
                }
            }
        }
        if(c0==0||c1==0) ans++;
    }
    writeln(ans);
}

Compilation message (stderr)

joi2019_ho_t4.cpp: In function 'int main()':
joi2019_ho_t4.cpp:71:22: warning: unused variable 'sw' [-Wunused-variable]
                 bool sw=0;
                      ^~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63