Compilare: user.cpp: In function ‘int main()’: user.cpp:9:12: warning: unused variable ‘m’ [-Wunused-variable] int n, m, i, j, k, s, t, st, s_st, s_dr, maxim; ^ user.cpp:9:18: warning: unused variable ‘j’ [-Wunused-variable] int n, m, i, j, k, s, t, st, s_st, s_dr, maxim; ^ user.cpp:9:27: warning: unused variable ‘t’ [-Wunused-variable] int n, m, i, j, k, s, t, st, s_st, s_dr, maxim; ^ user.cpp:6:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ssm.in","r",stdin); ^ user.cpp:7:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ssm.out","w",stdout); ^ user.cpp:12:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:14:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&k); ^