Compilare: user.cpp: In function ‘void readFile()’: user.cpp:29:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d", &n, &q, &m);assert(n <= m * m);assert(n <= m * m);assert(n <= m * m);assert(n <= m * m); ^ user.cpp:33:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &s[i]);assert(n <= m * m);assert(n <= m * m);assert(n <= m * m);assert(n <= m * m); ^ user.cpp:35:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &st, &dr);assert(n <= m * m);assert(n <= m * m);assert(n <= m * m);assert(n <= m * m); ^ user.cpp:36:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d%d", &a, &b, &c, &d);assert(n <= m * m);assert(n <= m * m);assert(n <= m * m);assert(n <= m * m); ^