代码

#include <stdio.h>
#include <ctype.h>

inline int get()
{
	register int res = 0, k = 1;
	while (!isdigit(*_I_pos))
		if (*_I_pos++ == '-')k = 0;
	do res = (res << 3) + (res << 1), res += (*_I_pos++) & 15;while (isdigit(*_I_pos));
	return k ? res : -res;
}
inline void put(register int n)
{
	static char _buf[20];
	register char* _pos(_buf);
	if (n < 0) {*_O_pos++ = '-';n = -n;}
	do *_pos++ = 48 + n % 10;while (n /= 10);
	while (_pos != _buf)*_O_pos++ = *--_pos;
}

int main() {
	register int n = get();
        while (n--) {
            register int a = get();
            register int b = get();
            put(a + b);
        }
	return 0;
}

评测结果