programming-examples/c++/_Basic/Scanner.cpp
2019-11-15 12:59:38 +01:00

54 lines
1.0 KiB
C++

#include <cstdio>
#include <memory.h>
const int BUF_SIZE = 65536;
char input[BUF_SIZE];
struct Scanner {
char* curPos;
Scanner() {
fread(input, 1, sizeof(input), stdin);
curPos = input;
}
void ensureCapacity() {
int size = input + BUF_SIZE - curPos;
if (size < 100) {
memcpy(input, curPos, size);
fread(input + size, 1, BUF_SIZE - size, stdin);
curPos = input;
}
}
int nextInt() {
ensureCapacity();
while (*curPos <= ' ')
++curPos;
bool sign = false;
if (*curPos == '-') {
sign = true;
++curPos;
}
int res = 0;
while (*curPos > ' ')
res = res * 10 + (*(curPos++) & 15);
return sign ? -res : res;
}
char nextChar() {
ensureCapacity();
while (*curPos <= ' ')
++curPos;
return *(curPos++);
}
};
int main() {
Scanner sc;
int a = sc.nextInt();
char b = sc.nextChar();
printf("%d %c\n", a, b);
}