Compilare: main.cpp: In function 'void read()': main.cpp:90:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (input, "%d %d", &n, &q); ^ main.cpp:93:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(input, "%d", &valori[i]); ^ main.cpp: In function 'void solve()': main.cpp:103:46: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (input, "%d %d %d", &a, &b,&c); ^