添加实用功能
- 同时读入+自动识别类型
template<typename T,typename...Args>void read(T&first,Args&...rest){read(first);read(rest...);}//使用int a;long long b;char c;string d;read(a,b,c,d);
- 读写单字符
void read(char &c){c=getchar();while(isspace(c))c=getchar();}void wr(const char c){putchar(c);}//使用char op;read(op);wr('\n');wr(' ');wr('-')
- 直接输出字符串
void wr(const char *s) {while (*s) putchar(*s++);}//使用wr("YES\n")wr("NO\n")wr("Bob\n")
- 同时输出，自动空格分隔
template<typename T,typename...Args>void wr(const T&first, const Args&...rest){wr(first);((putchar(' '),wr(rest)), ...);}//使用wr(a,b,c,d,'\n');
模板
namespace IO{template<typename T>void read(T&x){x=0;bool f=0;char ch=getchar();while(ch<'0'||ch>'9'){if(ch=='-')f=1;ch=getchar();}while(ch>='0'&&ch<='9'){x=(x<<3)+(x<<1)+(ch^48);ch=getchar();}if(f)x=-x;}void read(string&s){s.clear();char ch=getchar();while(isspace(ch))ch=getchar();while(!isspace(ch)&&ch!=EOF){s+=ch;ch=getchar();}}template<typename T>void wr(T x){if(x==0){putchar('0');return;}if(x<0)putchar('-'),x=-x;char stk[20];int top=0;while(x)stk[++top]=x%10+'0',x/=10;while(top)putchar(stk[top--]);}void wr(const string &s){for(char c:s)putchar(c);}template<typename T>void wr(const T&x,char sep){wr(x);putchar(sep);}template<typename T,typename...Args>void read(T&first,Args&...rest){read(first);read(rest...);}void read(char &c){c=getchar();while(isspace(c))c=getchar();}void wr(const char c){putchar(c);}void wr(const char*s){while(*s)putchar(*s++);}template<typename T,typename...Args>void wr(const T&first, const Args&...rest){wr(first);((putchar(' '),wr(rest)), ...);}
}using namespace IO;
又水一篇