http://www.jungol.co.kr/bbs/board.php?bo_table=pbank&wr_id=2418&sca=99&sfl=wr_hit&stx=3136 JUNGOL www.jungol.co.kr #include int N, M; typedef unsigned long long u64; u64 arr[1002][1002]; //(0,0) ~ (i,j) 까지의 합 int main(void) { scanf("%d", &N); u64 tmp; for (int i = 1; i