缺省源

#include <cstdio>
#include <cstdlib>
#include <ctype.h>

#define ll long long

template<typename T>
inline T read(T &f){
    f=0;
    int x=1;
    char c=getchar();
    while(!isdigit(c)){if(c==‘-‘)x=-1;c=getchar();}
    while(isdigit(c))f=f*10+c-‘0‘,c=getchar();
    return f=f*x;
}

template<typename T>
T min(const T &a,const T &b){return a < b ? a : b;}

template<typename T>
T max(const T &a,const T &b){return a > b ? a : b;}

int main(){
    return 0;
}