Compilare: main.cpp: In function 'int main()': main.cpp:102:17: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (a[iv][jv] != a[ic][jc]) ^~ main.cpp:104:21: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' if (cost < d[iv][jv]){ ^~ main.cpp: In member function 'char InParser::read_ch()': main.cpp:17:29: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^