Compilare: main.cpp: In function 'int main()': main.cpp:127:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0 ; j < v[nod].size() ; j++){ ~~^~~~~~~~~~~~~~~ main.cpp:198:9: warning: unused variable 'correct' [-Wunused-variable] int correct , mini = DIMN , li , ri; ^~~~~~~ main.cpp:198:19: warning: unused variable 'mini' [-Wunused-variable] int correct , mini = DIMN , li , ri; ^~~~ main.cpp:76:27: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d\n",&n); ^ main.cpp:193:37: 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 , 8000000 , fin); ^ main.cpp:277:13: warning: 'ant' may be used uninitialized in this function [-Wmaybe-uninitialized] if (ant) ^~