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#include "other/scanner.hpp"
/** * @brief Scanner(高速入力) */ struct Scanner { public: explicit Scanner(FILE *fp) : fp(fp) {} template< typename T, typename... E > void read(T &t, E &... e) { read_single(t); read(e...); } private: static constexpr size_t line_size = 1 << 16; static constexpr size_t int_digits = 20; char line[line_size + 1] = {}; FILE *fp = nullptr; char *st = line; char *ed = line; void read() {} static inline bool is_space(char c) { return c <= ' '; } void reread() { ptrdiff_t len = ed - st; memmove(line, st, len); char *tmp = line + len; ed = tmp + fread(tmp, 1, line_size - len, fp); *ed = 0; st = line; } void skip_space() { while(true) { if(st == ed) reread(); while(*st && is_space(*st)) ++st; if(st != ed) return; } } template< typename T, enable_if_t< is_integral< T >::value, int > = 0 > void read_single(T &s) { skip_space(); if(st + int_digits >= ed) reread(); bool neg = false; if(is_signed< T >::value && *st == '-') { neg = true; ++st; } typename make_unsigned< T >::type y = *st++ - '0'; while(*st >= '0') { y = 10 * y + *st++ - '0'; } s = (neg ? -y : y); } template< typename T, enable_if_t< is_same< T, string >::value, int > = 0 > void read_single(T &s) { s = ""; skip_space(); while(true) { char *base = st; while(*st && !is_space(*st)) ++st; s += string(base, st); if(st != ed) return; reread(); } } template< typename T > void read_single(vector< T > &s) { for(auto &d : s) read(d); } };
#line 1 "other/scanner.hpp" /** * @brief Scanner(高速入力) */ struct Scanner { public: explicit Scanner(FILE *fp) : fp(fp) {} template< typename T, typename... E > void read(T &t, E &... e) { read_single(t); read(e...); } private: static constexpr size_t line_size = 1 << 16; static constexpr size_t int_digits = 20; char line[line_size + 1] = {}; FILE *fp = nullptr; char *st = line; char *ed = line; void read() {} static inline bool is_space(char c) { return c <= ' '; } void reread() { ptrdiff_t len = ed - st; memmove(line, st, len); char *tmp = line + len; ed = tmp + fread(tmp, 1, line_size - len, fp); *ed = 0; st = line; } void skip_space() { while(true) { if(st == ed) reread(); while(*st && is_space(*st)) ++st; if(st != ed) return; } } template< typename T, enable_if_t< is_integral< T >::value, int > = 0 > void read_single(T &s) { skip_space(); if(st + int_digits >= ed) reread(); bool neg = false; if(is_signed< T >::value && *st == '-') { neg = true; ++st; } typename make_unsigned< T >::type y = *st++ - '0'; while(*st >= '0') { y = 10 * y + *st++ - '0'; } s = (neg ? -y : y); } template< typename T, enable_if_t< is_same< T, string >::value, int > = 0 > void read_single(T &s) { s = ""; skip_space(); while(true) { char *base = st; while(*st && !is_space(*st)) ++st; s += string(base, st); if(st != ed) return; reread(); } } template< typename T > void read_single(vector< T > &s) { for(auto &d : s) read(d); } };