Compilare: user.cpp: In function ‘void lee(int, int)’: user.cpp:26:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, s, t, d, k, x_aa, y_aa; ^ user.cpp:26:18: warning: unused variable ‘t’ [-Wunused-variable] int i, j, s, t, d, k, x_aa, y_aa; ^ user.cpp:26:24: warning: unused variable ‘k’ [-Wunused-variable] int i, j, s, t, d, k, x_aa, y_aa; ^ user.cpp: In function ‘int main()’: user.cpp:63:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( j = 0; j < strlen(q); ++j ){ ^ user.cpp:56:24: warning: unused variable ‘d’ [-Wunused-variable] int n, i, j, s, t, d, k; ^ user.cpp:56:27: warning: unused variable ‘k’ [-Wunused-variable] int n, i, j, s, t, d, k; ^ user.cpp:53:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("muzeu.in","r",stdin); ^ user.cpp:54:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("muzeu.out","w",stdout); ^ user.cpp:59:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%*c",&n); ^ user.cpp:61:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",q); ^