Compilare: user.cpp: In function ‘int lee(int)’: user.cpp:43:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:51:21: warning: unused variable ‘t’ [-Wunused-variable] int n, i, j, s, t, d, k; ^ user.cpp:51:24: warning: unused variable ‘d’ [-Wunused-variable] int n, i, j, s, t, d, k; ^ user.cpp:51:27: warning: unused variable ‘k’ [-Wunused-variable] int n, i, j, s, t, d, k; ^ user.cpp:48:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("taxe2.in","r",stdin); ^ user.cpp:49:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("taxe2.out","w",stdout); ^ user.cpp:54:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&s,&n); ^ user.cpp:57:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i][j]); ^