覚書。
./a.out difficult.txt > difficult_answer.txt 149.16s user 1.21s system 98% cpu 2:32.04 total
./a.out difficult.txt > difficult_a.txt 151.04s user 1.20s system 99% cpu 2:33.62 total
Hidden Singlesのところがもっと高速化できそう。
覚書。
./a.out difficult.txt > difficult_answer.txt 149.16s user 1.21s system 98% cpu 2:32.04 total
./a.out difficult.txt > difficult_a.txt 151.04s user 1.20s system 99% cpu 2:33.62 total
Hidden Singlesのところがもっと高速化できそう。