Compilare: user.cpp: In function ‘int main()’: user.cpp:80:10: warning: unused variable ‘mf’ [-Wunused-variable] bool mf=true; ^ user.cpp:81:26: warning: unused variable ‘t1’ [-Wunused-variable] temperature max= {0},t1,t2; ^ user.cpp:81:29: warning: unused variable ‘t2’ [-Wunused-variable] temperature max= {0},t1,t2; ^ user.cpp:65:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reactivi.in","r",stdin); ^ user.cpp:66:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reactivi.out","w",stdout); ^ user.cpp:67:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:70:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &temp[i].x, &temp[i].y); ^