代码

#include <cstdio>

char _buf[1000000], *_p1 = _buf, *_p2 = _buf;
inline char gc () {
	if (_p1 == _p2) _p2 = (_p1 = _buf) + fread(_buf, 1, 1000000, stdin);
	return _p1 == _p2 ? EOF : *(_p1++);
}

template <typename Tp>
inline void read (Tp& x) {
	x = 0;
	int y = 1;
	char c = gc();
	while (c < '0' || '9' < c) c == '-' && (y = -1), c = gc();
	while ('0' <= c && c <= '9') x = x * 10 + (c ^ 48), c = gc();
	x *= y;
}

int main () {
	int a, b;
	read(a), read(b);
	printf("%d\n", a + b);
	return 0;
}

评测结果