Compilare: user.cpp: In function ‘int main()’: user.cpp:152:6: warning: unused variable ‘kk’ [-Wunused-variable] int kk = k; ^~ user.cpp:130:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("munte2.in", "r", stdin); ^ user.cpp:131:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("munte2.out", "w", stdout); ^ user.cpp:133:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n, &k, &l); ^ user.cpp:138:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &h); ^