Compilare: user.cpp: In function ‘int main()’: user.cpp:17:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&n); ^ user.cpp:19:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&v[i]); ^ user.cpp:62:84: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(ans==dl[i]+dr[i+1]&&(pozl[i]<a||(pozl[i]==a&&i<b)||(pozl[i]==a&&b==i&&pozr[i+1]<c))){ ^ user.cpp:62:78: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(ans==dl[i]+dr[i+1]&&(pozl[i]<a||(pozl[i]==a&&i<b)||(pozl[i]==a&&b==i&&pozr[i+1]<c))){ ^ user.cpp:62:46: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(ans==dl[i]+dr[i+1]&&(pozl[i]<a||(pozl[i]==a&&i<b)||(pozl[i]==a&&b==i&&pozr[i+1]<c))){ ^