Compilare: user.cpp: In function ‘int main()’: user.cpp:26:23: warning: unused variable ‘cr’ [-Wunused-variable] int C = 1, L = 0, cr = 0; ^ user.cpp:17:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rsir.in", "r", stdin); ^ user.cpp:18:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rsir.out", "w", stdout); ^ user.cpp:19:76: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d%d%d%lld", &t.t0, &t.t1, &a, &b, &x, &y, &z, &m, &n); ^