写在前面：
一个小专题
完全非原创，不知道原来是谁提出的
诈尸
http://thepingaslord.deviantart.com/art/The-Evening-Prior-312446336
- FR0X01
1 #include<bits/stdc++.h> 2 3 using namespace std; 4 5 int a,b; 6 double c,d; 7 8 void readint(int &x){ 9 x=0;int neg=1; 10 char c=getchar(); 11 while(c<'0'||c>'9'){ 12 if(c=='-') neg=-1; 13 c=getchar(); 14 } 15 while(c>='0'&&c<='9'){ 16 x=10*x+c-'0'; 17 c=getchar(); 18 } 19 x*=neg; 20 return; 21 } 22 23 void read(double &x){ 24 x=0;double y=0.1,neg=1.0; 25 char c=getchar(); 26 while(c<'0'||c>'9'){ 27 if(c=='-') neg=-1.0; 28 c=getchar(); 29 } 30 while(c>='0'&&c<='9'){ 31 x=10*x+c-'0'; 32 c=getchar(); 33 } 34 if(c=='.'){ 35 c=getchar(); 36 while(c>='0'&&c<='9'){ 37 x+=y*(c-'0'); 38 y/=10; 39 c=getchar(); 40 } 41 } 42 x*=neg; 43 return; 44 } 45 46 int main() 47 { 48 readint(a);readint(b); 49 read(c);read(d); 50 51 printf("%d %d ",a,b); 52 printf("%lf %lf ",c,d); 53 54 return 0; 55 }
- FR0X02不定长度
#include<bits/stdc++.h> using namespace std; char getint(int &x){ x=0;int neg=1; char c=getchar(); while(c<'0'||c>'9'){ if(c=='-') neg=-1; c=getchar(); } while(c>='0'&&c<='9') { x=10*x+c-'0'; c=getchar(); } x=x*neg; return c; } int main()//利用快读读不定个数 { int x,y,w; for(int i=1;i<=3;++i) { char c;w=0; getint(x);c=getint(y); if(c!=' ') getint(w); if(w) printf("%d %d %d ",x,y,w); else printf("%d %d ",x,y); } return 0; }
- AdvancedFR
1 #include<iostream> 2 #include<cstdio> 3 4 using namespace std; 5 6 inline char GC(){ 7 static char buf[100010],*p1=buf,*p2=buf; 8 return (p1==p2&&(p2=(p1=buf)+fread(buf,1,100010,stdin),p1==p2))? EOF:*p1++; 9 } 10 11 void READ(int &x){ 12 x=0;int neg=1;char c=GC(); 13 while(c<'0'||c>'9'){if(c=='-')neg=-1;c=GC();} 14 while(c>='0'&&c<='9'){x=(x<<1)+(x<<3)+(c-'0');c=GC();} 15 x*=neg; 16 } 17 18 int main(int arg,char *argv[],char *enc[]) 19 { 20 freopen("game.in","r",stdin);freopen("game.out","w",stdout); 21 22 fclose(stdin);fclose(stdout); 23 return 0; 24 }
（NOIP2018亲测能用）
例子：
1 #include<bits/stdc++.h> 2 #define reg register 3 using namespace std; 4 5 int U_Rarity; 6 char E_Pie[10010]; 7 8 inline char GC(){ 9 static char buf[100010],*p1=buf,*p2=buf; 10 return (p1==p2&&(p2=(p1=buf)+fread(buf,1,100010,stdin),p1==p2))? EOF:*p1++; 11 } 12 13 int main(int arg,char *argv[],char *enc[]){ 14 freopen("winterwrapup.in","r",stdin);freopen("winterwrapup.out","w",stdout); 15 16 int E_Pie_len=0; 17 for(reg int i=1;i<=10000;++i){ 18 E_Pie[i]=GC(); 19 ++E_Pie_len; 20 if(E_Pie[i]==10) break; 21 } 22 for(reg int i=1;i<=E_Pie_len;++i) printf("%c",E_Pie[i]); 23 printf(" Length:%d",E_Pie_len); 24 25 fclose(stdin);fclose(stdout); 26 return 0; 27 }
比速度的话，AdvancedFR能够吊打基础快读