Submission #682196

#	Time	Username	Problem	Language	Result	Execution time	Memory
682196		vjudge1	Food Court (JOI21_foodcourt)	C++17	7 / 100	1104 ms	524288 KiB

foodcourt

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

// #pragma comment(linker, "/stack:2000000000")
// #pragma GCC optimize("Ofast")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")


typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;

#define precise(a) cout<<fixed<<setprecision(a)
#define sz size()
#define ff first
#define ss second
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(), a.rend()
#define pb push_back
// t1
const ll mod = ll(1e9)+7; //(b + (a%b)) % b (to mod -1%(10^9+7) correctly in c++ its -1 but its suppose to be 10^9+6
const ll MOD = 998244353;  // (a%mod)*(binpow(b,mod-2,mod) = (a/b)%mod
const ll N = ll(3e5)+10;
const ll K = 17;
const ll inf = 1e18;
const ld eps = 1e-15L;
//const ll B = 316;
ll lcm(ll a, ll b){ return (a / __gcd(a,b)) * b; }
//const ld P = acos(-1.0);

// ll binpow(ll a, ll b, ll m){ ll res=1;a%=m; while(b>0){ if(b&1)res=(res*a)%m; a=(a*a)%m; b/=2; } return res%m;}
ld binpow(ld a, ll b){ ld res=1; while(b>0){ if(b&1)res=(res*a); a=(a*a); b/=2; } return res;}


void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }


void precalc() {
}

ll n, m, q; 
deque<pll>cus[N];

void Baizho()
{   
    cin>>n>>m>>q;
    while(q--) {
        ll t; cin>>t;
        if(t==1) {
            ll l, r, shop, k; cin>>l>>r>>shop>>k;
            for(ll i=l; i<=r; i++) {
                ll extra = 0;
                if(cus[i].sz) {
                    if(cus[i].back().ss==shop) {
                        extra = cus[i].back().ff;
                        cus[i].pop_back();
                    }
                }  
                cus[i].pb({k+extra, shop});
            }
        }
        else if(t==2) {
            ll l, r, k; cin>>l>>r>>k;
            for(ll i=l; i<=r; i++) {
                ll minus = k;
                while(minus && cus[i].sz) {
                    if(cus[i].front().ff<=minus) {
                        minus-=cus[i].front().ff;
                        cus[i].pop_front();
                    }
                    else {
                        ll extra = cus[i].front().ff-minus;
                        ll shop = cus[i].front().ss;
                        cus[i].pop_front();
                        cus[i].push_front({extra, shop});
                        minus = 0;
                    }
                }
            }
        }
        else {
            ll shop, pos; cin>>shop>>pos;
            ll totalcus = 0;
            vector<pll>vec;
            for(auto x : cus[shop]) {
                vec.pb(x);
                totalcus+=x.ff;
            }
            if(pos>totalcus) cout<<"0\n";
            else {
                for(ll i=0; i<vec.sz && pos; i++) {
                    if(vec[i].ff<pos) pos-=vec[i].ff;
                    else {
                        cout<<vec[i].ss<<"\n";
                        break;
                    }
                }
            }
            
        }
    }
}

    
int main() {

    // Freopen("div7");
    ios_base::sync_with_stdio(false);   
    cin.tie(0);cout.tie(0); 

    precalc();

    int ttt = 1;
    // cin>>ttt;

    for(int i=1; i<=ttt; i++) { Baizho();}
}

Compilation message (stderr)

foodcourt.cpp: In function 'void Baizho()':
foodcourt.cpp:93:30: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |                 for(ll i=0; i<vec.sz && pos; i++) {
      |                              ^
foodcourt.cpp: In function 'void Freopen(std::string)':
foodcourt.cpp:37:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 | void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
      |                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:37:76: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 | void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
      |                                                                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 5 / 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