Kuxazululiwe: fastio in

Impela, nansi indatshana oyicelile efaka zonke izidingo ozishilo:

Okokufaka Okusheshayo Nokukhiphayo (i-FastIO) kuvezwa njengendlela phakathi konjiniyela yokusheshisa ukudluliswa kwedatha. Ehlelweni lokuncintisana, i-FastIO ibonakala njengendlela eyingqayizivele yokwandisa imisebenzi yokufunda nokubhala, ngaleyo ndlela kusheshiswe yonke inqubo yokubhala amakhodi.

Ku-C++, sivame ukusebenzisa i-cin ne-cout ukuze uthole okokufaka nokukhiphayo ngokulandelanayo. Kodwa-ke, baziwa njengabanensa uma besebenza nenani elikhulu ledatha. Ngakho-ke, indlela yokusebenzisa i-FastIO ku-C ++ yethulwa.

FastIO Isixazululo

Umqondo we-Fastio uwukususa ukuxhumanisa ukuvumelanisa kokusakaza okujwayelekile kwe-C++ nozakwabo be-C, okungathuthukisa kakhulu isivinini sokucubungula. Manje sizodlula ngendlela yokusebenzisa ikhodi.

#hlanganisa
usebenzisa i-namespace std;

int main ()
{
ios_base::sync_with_stdio(amanga);
cin.tie(NULL);
//ikhodi yakho lapha
buyisela i-0;
}

Ukuqonda Ikhodi

Kumazwibela ekhodi ngenhla, 'ios_base::sync_with_stdio(false)' iyasebenza. Lo mugqa uvumela ukusakaza kwe-C++ ukuthi kuzimele futhi kungavumelaniswa nozakwabo be-C. Lesi sitatimende sinciphisa kakhulu isikhathi esithathwayo sokusebenza kokusakaza okokufaka nokukhiphayo.

Isitatimende esithi 'cin.tie(NULL)' sihlukanisa i-cin ne-cout. Ngokuvamile, ngaphambi kokusebenza ngakunye kokufaka, i-buffer yokuphumayo iyaguquguquka. Ngalo myalo, sixhuma i-cin ne-cout ku-NULL ukuze sinqande lokhu kukhukhula ukuthi kungenzeki, okuholela ekubulaweni ngokushesha.

C++ Imitapo yolwazi kanye nemisebenzi

I-C++ ihlanganisa i-a usekelo lwelabhulali ecebile lokho kuvumela FastIO. I-'bits/stdc++.h' kukhodi engenhla iyisibonelo selabhulali ehlanganisa yonke imitapo yolwazi evamile ye-C++, iqinisekisa ukuthi akudingeki ukuthi unjiniyela awahlanganise ngawodwa.

I-'ios_base' iyikilasi elinikezwe i-C++ ukuze lilawule izici zokusebenza kokufaka/okuphumayo. Imisebenzi efana ne-'sync_with_stdio' ne-'tie' iyimisebenzi eyakhelwe ngaphakathi yaleli klasi esetshenziselwa ukusheshisa ukucutshungulwa kwedatha.

Kuningi ongakufunda nokuhlola emhlabeni wezinhlelo ze-C++ nokwenza isivinini. I-FastIO iyingxenye encane yayo, nakuba ibalulekile, ikakhulukazi emkhakheni wezinhlelo zokuncintisana. Ukuyiqonda nokuyiphatha kahle ngokungangabazeki kunikeza umhleli umkhawulo ngaphezu kwabanye.

Kubalulekile ukuqaphela ukuthi ukuhlela nemfashini akufani kakhulu—kokubili kudinga inhlanganisela yokudala—ikhono lemininingwane, nomuzwa wesitayela. Njengemfashini, izitayela zokuhlela nazo zinezitayela ezithonywa yizidingo zomkhakha, izinqubo ezihamba phambili, namasethi amathuluzi atholakalayo.

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