快读快写模板

bokaro_kyoku_mania · 2025-07-10 15:19:02 · 算法·理论

快读1：

#include<bits/stdc++.h>
#define int long long
using namespace std;
int t;
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0),cout.tie(0);
    cin>>t;
    while(t--){
        int n;
        cin>>n;
        cout<<n<<"\n";
    }

    return 0;
}

快读2：

#include<bits/stdc++.h>
#define int long long
using namespace std;
int t;
signed main(){
    scanf("%lld",&t);
    while(t--){
        int n;
        scanf("%lld",&n);
        printf("%lld\n",n);
    }

    return 0;
} 

快读3：

#include<bits/stdc++.h>
#define int long long
using namespace std;
int t;
template<typename T>inline void read(T&x){
    x=0;
    char c;
    int sign=1;
    do{
        c=getchar();
        if(c=='-'){
            sign=-1;
        }
    }while(!isdigit(c));
    do{
        x=x*10+c-'0';
        c=getchar();
    }while(isdigit(c));
    x*=sign;
}
inline void write(int x){
    if(x<0){
        putchar('-');
        x=-x;
    }
    if(x>9)write(x/10);
    putchar(x%10+'0');
}
signed main(){
    read(t);
    while(t--){
        int n;
        read(n);
        write(n);
    }

    return 0;
} 

快读4（字符串）：

#include<bits/stdc++.h>
using namespace std;
inline string readstr(){
    string str="";
    char ch=getchar();
    while(ch=='\n'||ch=='\r'){
        ch=getchar();
    }
    while(ch!='\n'&&ch!='\r'){
        str+=ch;
        ch=getchar();
    }
    return str;
}
inline void writestr(string s){
    for(int i=0;s[i]!='\0';i++){
        putchar(s[i]);
    }
}
string s;
signed main(){
    s=readstr();
    writestr(s);

    return 0;
}

快读5（最快）：

#include<bits/stdc++.h>
using namespace std;
namespace FastIO{
    const int SZ=1<<20;
    char inbuf[SZ],outbuf[SZ];
    int in_left=0,in_right=0;
    int out_right=0;
    inline void load(){
        int len=fread(inbuf,1,SZ,stdin);
        in_left=0;
        in_right=len;
    }
    inline char getchar(){
        if(in_left>=in_right){
            load();
        }
        if(in_left>=in_right){
            return EOF;
        }
        return inbuf[in_left++];
    }
    inline int read(){
        int x=0,f=1;
        char ch=getchar();
        while(ch<'0'||ch>'9'){
            if(ch=='-'){
                f=-1;
            }
            ch=getchar();
        }
        while(ch>='0'&&ch<='9'){
            x=x*10+(ch-'0');
            ch=getchar();
        }
        return x*f;
    }
    inline void flush(){
        fwrite(outbuf,1,out_right,stdout);
        out_right=0;
    }
    inline void putchar(char ch){
        outbuf[out_right++]=ch;
        if(out_right==SZ){
            flush();
        }
    }
    inline void write(int x){
        if(x<0){
            putchar('-');
            x=-x;
        }
        if(x>9){
            write(x/10);
        }
        putchar(x%10+'0');
    }
    struct Flusher{
        ~Flusher(){
            flush();
        }
    }flusher;
}
using FastIO::read;
using FastIO::write;
using FastIO::putchar;
signed main(){
    int n=read();
    while(n--){
        int op=read();
        write(op);
        putchar('\n');
    }

    //使用命名空间版本 

    int m=FastIO::read();
    while(m--){
        int po=FastIO::read();
        FastIO::write(po);
        FastIO::putchar('\n');
    }

    return 0;
}