Compilare: user.cpp: In function ‘int main()’: user.cpp:40:103: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] while( ( v[i].s <= x[j].s && v[i].f >= x[j].s ) || ( v[i].s >= x[j].s && v[i].s <= x[j].f ) && j<=m ){ ^ user.cpp:28:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&k,&n); ^ user.cpp:30:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&v[i].s,&v[i].f); ^ user.cpp:33:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&m); ^ user.cpp:35:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&x[i].s,&x[i].f); ^