/in/foo.cc:80:9: warning: "/*" within comment [-Wcomment]
   80 |         /*
      |          
/in/foo.cc:88:15: error: expected constructor, destructor, or type conversion before '(' token
   88 |         memcpy(cur, link, sizeof(LL) * N);
      |               ^
/in/foo.cc:89:15: error: expected constructor, destructor, or type conversion before '(' token
   89 |         memset(layer, 0, sizeof(LL) * N);
      |               ^
/in/foo.cc:90:15: error: expected constructor, destructor, or type conversion before '(' token
   90 |         memset(deep, 0, sizeof(LL) * N);
      |               ^
/in/foo.cc:91:9: error: 'layer' does not name a type
   91 |         layer[0] = N;
      |         ^~~~~
/in/foo.cc:92:9: error: 'maxflow' does not name a type
   92 |         maxflow = 0;
      |         ^~~~~~~
/in/foo.cc:94:9: error: expected unqualified-id before 'for'
   94 |         for (LL permit_flow = inf, x = st; deep[st] < N; ) {
      |         ^~~
/in/foo.cc:94:44: error: 'deep' does not name a type
   94 |         for (LL permit_flow = inf, x = st; deep[st] < N; ) {
      |                                            ^~~~
/in/foo.cc:94:58: error: expected unqualified-id before ')' token
   94 |         for (LL permit_flow = inf, x = st; deep[st] < N; ) {
      |                                                          ^
/in/foo.cc:123:9: error: expected unqualified-id before 'return'
  123 |         return maxflow;
      |         ^~~~~~
/in/foo.cc:124:1: error: expected declaration before '}' token
  124 | }
      | ^
/in/foo.cc:125:2: error: expected unqualified-id before '/' token
  125 | */
      |  ^
/in/foo.cc: In function 'long long int ISAP()':
/in/foo.cc:179:9: error: 'bfs' was not declared in this scope; did you mean 'ffs'?
  179 |         bfs();
      |         ^~~
      |         ffs