0_0_16841771_19184.c:21:1: error: expected identifier or '(' before '/' token
// 用两层循环必超时,
^
0_0_16841771_19184.c:21:1: error: stray '\323' in program
0_0_16841771_19184.c:21:1: error: stray '\303' in program
0_0_16841771_19184.c:21:1: error: stray '\301' in program
0_0_16841771_19184.c:21:1: error: stray '\275' in program
0_0_16841771_19184.c:21:1: error: stray '\262' in program
0_0_16841771_19184.c:21:1: error: stray '\343' in program
0_0_16841771_19184.c:21:1: error: stray '\321' in program
0_0_16841771_19184.c:21:1: error: stray '\255' in program
0_0_16841771_19184.c:21:1: error: stray '\273' in program
0_0_16841771_19184.c:21:1: error: stray '\267' in program
0_0_16841771_19184.c:21:1: error: stray '\261' in program
0_0_16841771_19184.c:21:1: error: stray '\330' in program
0_0_16841771_19184.c:21:1: error: stray '\263' in program
0_0_16841771_19184.c:21:1: error: stray '\254' in program
0_0_16841771_19184.c:21:1: error: stray '\312' in program
0_0_16841771_19184.c:21:1: error: stray '\261' in program
0_0_16841771_19184.c:22:1: error: stray '\277' in program
// 可以用求和公式代替一层循环
^
0_0_16841771_19184.c:22:1: error: stray '\311' in program
0_0_16841771_19184.c:22:1: error: stray '\322' in program
0_0_16841771_19184.c:22:1: error: stray '\324' in program
0_0_16841771_19184.c:22:1: error: stray '\323' in program
0_0_16841771_19184.c:22:1: error: stray '\303' in program
0_0_16841771_19184.c:22:1: error: stray '\307' in program
0_0_16841771_19184.c:22:1: error: stray '\363' in program
0_0_16841771_19184.c:22:1: error: stray '\272' in program
0_0_16841771_19184.c:22:1: error: stray '\315' in program
0_0_16841771_19184.c:22:1: error: stray '\271' in program
0_0_16841771_19184.c:22:1: error: stray '\253' in program
0_0_16841771_19184.c:22:1: error: stray '\312' in program
0_0_16841771_19184.c:22:1: error: stray '\275' in program
0_0_16841771_19184.c:22:1: error: stray '\264' in program
0_0_16841771_19184.c:22:1: error: stray '\372' in program
0_0_16841771_19184.c:22:1: error: stray '\314' in program
0_0_16841771_19184.c:22:1: error: stray '\346' in program
0_0_16841771_19184.c:22:1: error: stray '\322' in program
0_0_16841771_19184.c:22:1: error: stray '\273' in program
0_0_16841771_19184.c:22:1: error: stray '\262' in program
0_0_16841771_19184.c:22:1: error: stray '\343' in program
0_0_16841771_19184.c:22:1: error: stray '\321' in program
0_0_16841771_19184.c:22:1: error: stray '\255' in program
0_0_16841771_19184.c:22:1: error: stray '\273' in program
0_0_16841771_19184.c:22:1: error: stray '\267' in program
0_0_16841771_19184.c:23:1: error: stray '\262' in program
// 并且可以用求和公式进行变换减少一个循环变量
^
0_0_16841771_19184.c:23:1: error: stray '\242' in program
0_0_16841771_19184.c:23:1: error: stray '\307' in program
0_0_16841771_19184.c:23:1: error: stray '\322' in program
0_0_16841771_19184.c:23:1: error: stray '\277' in program
0_0_16841771_19184.c:23:1: error: stray '\311' in program
0_0_16841771_19184.c:23:1: error: stray '\322' in program
0_0_16841771_19184.c:23:1: error: stray '\324' in program
0_0_16841771_19184.c:23:1: error: stray '\323' in program
0_0_16841771_19184.c:23:1: error: stray '\303' in program
0_0_16841771_19184.c:23:1: error: stray '\307' in program
0_0_16841771_19184.c:23:1: error: stray '\363' in program
0_0_16841771_19184.c:23:1: error: stray '\272' in program
0_0_16841771_19184.c:23:1: error: stray '\315' in program
0_0_16841771_19184.c:23:1: error: stray '\271' in program
0_0_16841771_19184.c:23:1: error: stray '\253' in program
0_0_16841771_19184.c:23:1: error: stray '\312' in program
0_0_16841771_19184.c:23:1: error: stray '\275' in program
0_0_16841771_19184.c:23:1: error: stray '\275' in program
0_0_16841771_19184.c:23:1: error: stray '\370' in program
0_0_16841771_19184.c:23:1: error: stray '\320' in program
0_0_16841771_19184.c:23:1: error: stray '\320' in program
0_0_16841771_19184.c:23:1: error: stray '\261' in program
0_0_16841771_19184.c:23:1: error: stray '\344' in program
0_0_16841771_19184.c:23:1: error: stray '\273' in program
0_0_16841771_19184.c:23:1: error: stray '\273' in program
0_0_16841771_19184.c:23:1: error: stray '\274' in program
0_0_16841771_19184.c:23:1: error: stray '\365' in program
0_0_16841771_19184.c:23:1: error: stray '\311' in program
0_0_16841771_19184.c:23:1: error: stray '\331' in program
0_0_16841771_19184.c:23:1: error: stray '\322' in program
0_0_16841771_19184.c:23:1: error: stray '\273' in program
0_0_16841771_19184.c:23:1: error: stray '\270' in program
0_0_16841771_19184.c:23:1: error: stray '\366' in program
0_0_16841771_19184.c:23:1: error: stray '\321' in program
0_0_16841771_19184.c:23:1: error: stray '\255' in program
0_0_16841771_19184.c:23:1: error: stray '\273' in program
0_0_16841771_19184.c:23:1: error: stray '\267' in program
0_0_16841771_19184.c:23:1: error: stray '\261' in program
0_0_16841771_19184.c:23:1: error: stray '\344' in program
0_0_16841771_19184.c:23:1: error: stray '\301' in program
0_0_16841771_19184.c:23:1: error: stray '\277' in program
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