0_0_20702067_8345.c: In function 'dfs':
0_0_20702067_8345.c:21:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int j=2;j<=n;j++)
^
0_0_20702067_8345.c:21:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_20702067_8345.c:29:44: error: expected expression before '/' token
dfs(step); //深度优先搜索找出当前情况下的序列
^
0_0_20702067_8345.c:29:44: error: stray '\311' in program
0_0_20702067_8345.c:29:44: error: stray '\356' in program
0_0_20702067_8345.c:29:44: error: stray '\266' in program
0_0_20702067_8345.c:29:44: error: stray '\310' in program
0_0_20702067_8345.c:29:44: error: stray '\323' in program
0_0_20702067_8345.c:29:44: error: stray '\305' in program
0_0_20702067_8345.c:29:44: error: stray '\317' in program
0_0_20702067_8345.c:29:44: error: stray '\310' in program
0_0_20702067_8345.c:29:44: error: stray '\313' in program
0_0_20702067_8345.c:29:44: error: stray '\321' in program
0_0_20702067_8345.c:29:44: error: stray '\313' in program
0_0_20702067_8345.c:29:44: error: stray '\367' in program
0_0_20702067_8345.c:29:44: error: stray '\325' in program
0_0_20702067_8345.c:29:44: error: stray '\322' in program
0_0_20702067_8345.c:29:44: error: stray '\263' in program
0_0_20702067_8345.c:29:44: error: stray '\366' in program
0_0_20702067_8345.c:29:44: error: stray '\265' in program
0_0_20702067_8345.c:29:44: error: stray '\261' in program
0_0_20702067_8345.c:29:44: error: stray '\307' in program
0_0_20702067_8345.c:29:44: error: stray '\260' in program
0_0_20702067_8345.c:29:44: error: stray '\307' in program
0_0_20702067_8345.c:29:44: error: stray '\351' in program
0_0_20702067_8345.c:29:44: error: stray '\277' in program
0_0_20702067_8345.c:29:44: error: stray '\366' in program
0_0_20702067_8345.c:29:44: error: stray '\317' in program
0_0_20702067_8345.c:29:44: error: stray '\302' in program
0_0_20702067_8345.c:29:44: error: stray '\265' in program
0_0_20702067_8345.c:29:44: error: stray '\304' in program
0_0_20702067_8345.c:29:44: error: stray '\320' in program
0_0_20702067_8345.c:29:44: error: stray '\362' in program
0_0_20702067_8345.c:29:44: error: stray '\301' in program
0_0_20702067_8345.c:29:44: error: stray '\320' in program
0_0_20702067_8345.c:31:44: error: expected expression before '/' token
step--; //退回到当前节点，等到下一次循环则遍历另外一个分支
^
0_0_20702067_8345.c:31:44: error: stray '\315' in program
0_0_20702067_8345.c:31:44: error: stray '\313' in program
0_0_20702067_8345.c:31:44: error: stray '\273' in program
0_0_20702067_8345.c:31:44: error: stray '\330' in program
0_0_20702067_8345.c:31:44: error: stray '\265' in program
0_0_20702067_8345.c:31:44: error: stray '\275' in program
0_0_20702067_8345.c:31:44: error: stray '\265' in program
0_0_20702067_8345.c:31:44: error: stray '\261' in program
0_0_20702067_8345.c:31:44: error: stray '\307' in program
0_0_20702067_8345.c:31:44: error: stray '\260' in program
0_0_20702067_8345.c:31:44: error: stray '\275' in program
0_0_20702067_8345.c:31:44: error: stray '\332' in program
0_0_20702067_8345.c:31:44: error: stray '\265' in program
0_0_20702067_8345.c:31:44: error: stray '\343' in program
0_0_20702067_8345.c:31:44: error: stray '\243' in program
0_0_20702067_8345.c:31:44: error: stray '\254' in program
0_0_20702067_8345.c:31:44: error: stray '\265' in program
0_0_20702067_8345.c:31:44: error: stray '\310' in program
0_0_20702067_8345.c:31:44: error: stray '\265' in program
0_0_20702067_8345.c:31:44: error: stray '\275' in program
0_0_20702067_8345.c:31:44: error: stray '\317' in program
0_0_20702067_8345.c:31:44: error: stray '\302' in program
0_0_20702067_8345.c:31:44: error: stray '\322' in program
0_0_20702067_8345.c:31:44: error: stray '\273' in program
0_0_20702067_8345.c:31:44: error: stray '\264' in program
0_0_20702067_8345.c:31:44: error: stray '\316' in program
0_0_20702067_8345.c:31:44: error: stray '\321' in program
0_0_20702067_8345.c:31:44: error: stray '\255' in program
0_0_20702067_8345.c:31:44: error: stray '\273' in program
0_0_20702067_8345.c:31:44: error: stray '\267' in program
0_0_20702067_8345.c:31:44: error: stray '\324' in program
0_0_20702067_8345.c:31:44: error: stray '\362' in program
0_0_20702067_8345.c:31:44: error: stray '\261' in program
0_0_20702067_8345.c:31:44: error: stray '\351' in program
0_0_20702067_8345.c:31:44: error: stray '\300' in program
0_0_20702067_8345.c:31:44: error: stray '\372' in program
0_0_20702067_8345.c:31:44: error: stray '\301' in program
0_0_20702067_8345.c:31:44: error: stray '\355' in program
0_0_20702067_8345.c:31:44: error: stray '\315' in program
0_0_20702067_8345.c:31:44: error: stray '\342' in program
0_0_20702067_8345.c:31:44: error: stray '\322' in program
0_0_20702067_8345.c:31:44: error: stray '\273' in program
0_0_20702067_8345.c:31:44: error: stray '\270' in program
0_0_20702067_8345.c:31:44: error: stray '\366' in program
0_0_20702067_8345.c:31:44: error: stray '\267' in program
0_0_20702067_8345.c:31:44: error: stray '\326' in program
0_0_20702067_8345.c:31:44: error: stray '\326' in program
0_0_20702067_8345.c:31:44: error: stray '\247' in program
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