Submission #682301

#	Time	Username	Problem	Language	Result	Execution time	Memory
682301		vjudge1	Food Court (JOI21_foodcourt)	C++17	0 / 100	1096 ms	524288 KiB

foodcourt

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

// #define ORD_SET
// #define ROPE
#ifdef ORD_SET
    #include <ext/pb_ds/assoc_container.hpp>
    #include <ext/pb_ds/tree_policy.hpp>
    using namespace __gnu_pbds;
    template<typename T>
    using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#endif
#ifdef ROPE
    #include <ext/rope>
    using namespace __gnu_cxx;
#endif        

// #pragma comment(linker, "/stack:200000000")
// #pragma GCC optimize("Ofast")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")

using ll = long long;
using ld = long double;
#define pb push_back
#define ff first
#define ss second
#define sz(x) (ll)(x).size()
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
// #define ll int
void freopen(string s) { freopen((s + ".in").c_str(), "r", stdin); freopen((s + ".out").c_str(), "w", stdout); }
void NotInteractive() { ios_base::sync_with_stdio(false); cin.tie(NULL); }
void pre(ll a) { cout<<fixed<<setprecision(a); }
ll bit(ll x) { return __builtin_popcountll(x); }
ll binpow(ll x, ll y, ll z) { ll pow = 1; while(y) { if(y&1) pow *= x, pow %= z; x *= x, x %= z; y >>= 1; } return pow; }
template<typename T> T gcd(T a, T b) { if(b==0) return a; return gcd(b, a%b); }
template<typename T> T lcm(T a, T b) { return a/gcd(a, b)*b; }
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

struct sn { ll l, r, x; }; // a.swap(b)
ll B = 316;
const ll mod = (ll)1e9+7;
const ll inf = (ll)1e18+7;
const ll MX = LLONG_MAX;
const ll MN = LLONG_MIN;
const ld P = acos(-1.0);
const ll N = (ll)3e5+5;
vector<pair<ll, ll>> v[N];
vector<ll> len(N), g[N];
ll t[N], l[N], r[N], c[N], k[N];

void kigash() {
    ll n, m, q, mx = 0;
    cin>>n>>m>>q;
    for(ll i=1; i<=q; i++) {
        ll tmp = -1, lmp = -1, rmp = -1, cmp = -1, kmp = -1;
        cin>>tmp;
        if(tmp==1) cin>>lmp>>rmp>>cmp>>kmp;
        else if(tmp==2) cin>>lmp>>rmp>>kmp;
        else cin>>cmp>>kmp;
        t[i] = tmp, l[i] = lmp, r[i] = rmp, c[i] = cmp, k[i] = kmp;
        mx = max(mx, k[i]);
    }
    if(mx==1) {
        for(ll tt=1; tt<=q; tt++) {
            if(t[tt]==1) {
                for(ll i=l[tt]; i<=r[tt]; i++) {
                    for(ll j=1; j<=k[tt]; j++) g[i].pb(c[tt]);
                }
            }
            else if(t[tt]==2) {
                for(ll i=l[tt]; i<=r[tt]; i++) {
                    if(sz(v[i])<=k[tt]) g[i].clear();
                    else {
                        vector<ll> tmp;
                        for(ll j=k[tt]; j<sz(g[i]); j++) tmp.pb(g[i][j]);
                        g[i] = tmp;
                    }
                }
            }
            else {
                // cout<<sz(v[c])<<" ";
                if(sz(g[c[tt]])>=k[tt]) cout<<g[c[tt]][k[tt]-1]<<"\n";
                else cout<<"0\n";
            }
        }
        return;
    }
    for(ll tt=1; tt<=q; tt++) {
        // if(tt==3) {
        //     for(ll i=1; i<=n; i++) {
        //         for(auto x: v[i]) cout<<x.ff<<" "<<x.ss<<"\n";
        //         cout<<"\n";
        //     }
        //     return;
        // }
        if(t[tt]==1) {
            for(ll i=l[tt]; i<=r[tt]; i++) v[i].pb({k[tt], c[tt]}), len[i] += k[tt];
        }
        else if(t[tt]==2) {
            for(ll i=l[tt]; i<=r[tt]; i++) {
                if(len[i]<=k[tt]) len[i] = 0, v[i].clear();
                else {
                    vector<pair<ll, ll>> tmp;
                    ll f = 0;
                    len[i] -= k[tt];
                    for(ll j=0, sum = 0; j<sz(v[i]); j++) {
                        if(f) {
                            tmp.pb(v[i][j]);
                            continue;
                        }
                        sum += v[i][j].ff;
                        if(sum==k[tt]) f = 1;
                        else if(sum>k[tt]) {
                            tmp.pb({v[i][j].ff-(k[tt]-sum+v[i][j].ff), v[i][j].ss});
                            f = 1;
                        }
                    }
                    v[i] = tmp;
                }
            }
        }
        else {
            if(len[c[tt]]>=k[tt]) {
                for(ll i=0, sum = 0; i<sz(v[c[tt]]); i++) {
                    sum += v[c[tt]][i].ff;
                    if(sum>=k[tt]) {
                        cout<<v[c[tt]][i].ss<<"\n";
                        break;
                    }
                }
            }
            else cout<<"0\n";
        }
    }
    return;
}

signed main(/**/) {
    // freopen("");
    NotInteractive();
    // precalc();
    
    ll tt = 1;
    // cin>>tt;
    for(ll i=1; i<=tt; i++) kigash();
    
    exit(0);
}

Compilation message (stderr)

foodcourt.cpp: In function 'void freopen(std::string)':
foodcourt.cpp:31:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 | void freopen(string s) { freopen((s + ".in").c_str(), "r", stdin); freopen((s + ".out").c_str(), "w", stdout); }
      |                          ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:31:75: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 | void freopen(string s) { freopen((s + ".in").c_str(), "r", stdin); freopen((s + ".out").c_str(), "w", stdout); }
      |                                                                    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 2
• Subtask 2: 0 / 5
• Subtask 3: 0 / 7
• Subtask 4: 0 / 21
• Subtask 5: 0 / 15
• Subtask 6: 0 / 13
• Subtask 7: 0 / 26
• Subtask 8: 0 / 11