Compilare: user.cpp: In function ‘int main()’: user.cpp:81:18: warning: narrowing conversion of ‘x’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] v[i] = { x, y, i }; ^ user.cpp:81:18: warning: narrowing conversion of ‘y’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] user.cpp:60:12: warning: unused variable ‘x’ [-Wunused-variable] double x, y; ^ user.cpp:60:15: warning: unused variable ‘y’ [-Wunused-variable] double x, y; ^ user.cpp:67:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &t ); ^ user.cpp:75:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &n, &k ); ^ user.cpp:79:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &x, &y ); ^