Compilare: user.cpp: In function ‘int main()’: user.cpp:26:34: warning: unused variable ‘t2’ [-Wunused-variable] int Front = 1, Back = 0, t2 = 0; ^ user.cpp:15:18: warning: unused variable ‘Max’ [-Wunused-variable] int Sol = 0, Max = 0; ^ user.cpp:12:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gard.in", "r", stdin); ^ user.cpp:13:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gard.out", "w", stdout); ^ user.cpp:14:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:17:57: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &L[i], &P[i], &S[i]), pos[i] = i; ^