Compilare: main.cpp: In function 'void solve()': main.cpp:57:52: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d%d%d%d%d",&x,&y,&z,&a,&b,&c,&n); ^ main.cpp: In function 'int main()': main.cpp:89:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^