Compilare: main.cpp: In function 'int main()': main.cpp:23:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fis, "%d", &t); ^ main.cpp:26:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fis, "%d", &n); ^ main.cpp:28:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fis, "%d.%d", &x, &y); ^