Compilare: user.cpp: In function ‘void solve()’: user.cpp:380:13: warning: unused variable ‘bigger’ [-Wunused-variable] int bigger = 0, big = 0; ^ user.cpp:380:25: warning: unused variable ‘big’ [-Wunused-variable] int bigger = 0, big = 0; ^ user.cpp: In function ‘void readFile()’: user.cpp:457:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &t); ^ user.cpp:467:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d", &n, &m, &k); ^ user.cpp:473:59: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &ch[i].r, &ch[i].x), line ++; ^ user.cpp:480:59: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &sf[i].r, &sf[i].x), line ++; ^