Compilare: user.cpp: In function ‘void solve1()’: user.cpp:29:15: warning: unused variable ‘sum’ [-Wunused-variable] long long sum = 0; ^ user.cpp: In function ‘void solve2()’: user.cpp:58:15: warning: unused variable ‘sum’ [-Wunused-variable] long long sum = 0; ^ user.cpp: In function ‘void citire()’: user.cpp:17:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &n, &k); ^ user.cpp:21:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &numere[i]); ^ user.cpp: In function ‘int main()’: user.cpp:112:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vila2.in", "r", stdin); ^ user.cpp:113:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vila2.out", "w", stdout); ^