代码

#include <stdio.h>

struct IO {
	char ibuf[8192], *ips = ibuf + 8192, obuf[8192], *ops = obuf;
	int getchar() {if (ips == ibuf + 8192) fread(ips = ibuf, 1, 8192, stdin); return *ips ++;}
	void putchar(int c) {if (ops == obuf + 8192) fwrite(ops = obuf, 1, 8192, stdout); *ops ++ = c;}
	~IO() {fwrite(obuf, 1, ops - obuf, stdout);}
} io;
#define getchar io.getchar
#define putchar io.putchar

inline int read() {
	register int x = 0, f = 1, c = getchar();
	while (c <= 32) c = getchar();
	if (c == '-') f = 0, c = getchar();
	while (c > 32) (x = (x << 3) + (x << 1)) += c & 15, c = getchar();
	return f ? x : -x;
}

inline void write(register int x) {
	char stk[20], *ps = stk;
	if (x < 0) putchar('-'), x = -x;
	if (!x) putchar('0');
	while (x) *ps ++ = x % 10 + '0', x /= 10;
	while (ps != stk) putchar(*-- ps);
}

int main() {
	int n = read();
	while (n --) write(read() + read()), putchar(10);
	return 0;
}

评测结果