Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0 ; i < v[nod].size() ; i++){ ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:104:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0 ; i < v[x].size() ; i++){ ~~^~~~~~~~~~~~~ main.cpp:72:42: warning: unused variable 'poz' [-Wunused-variable] int n , q , i , x , y , tot , maxi , poz , vecin; ^~~ main.cpp:74:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&q); ^ main.cpp:76:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&x,&y); ^ main.cpp:85:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&val[i]); ^ main.cpp:98:38: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&y,&x); ^ main.cpp:102:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&x); ^