Compilare: user.cpp: In function ‘void compute(int)’: user.cpp:27:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i = 0; i < v[ nod ].size(); ++i ){ ^ user.cpp:21:9: warning: unused variable ‘n’ [-Wunused-variable] int n, i, fiu, stramos; ^ user.cpp: In function ‘int main()’: user.cpp:42:12: warning: unused variable ‘m’ [-Wunused-variable] int n, m, i, j, s, t, d, x, y; ^ user.cpp:42:18: warning: unused variable ‘j’ [-Wunused-variable] int n, m, i, j, s, t, d, x, y; ^ user.cpp:42:21: warning: unused variable ‘s’ [-Wunused-variable] int n, m, i, j, s, t, d, x, y; ^ user.cpp:42:24: warning: unused variable ‘t’ [-Wunused-variable] int n, m, i, j, s, t, d, x, y; ^ user.cpp:42:27: warning: unused variable ‘d’ [-Wunused-variable] int n, m, i, j, s, t, d, x, y; ^ user.cpp:39:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cerere.in","r",stdin); ^ user.cpp:40:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cerere.out","w",stdout); ^ user.cpp:44:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:45:60: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for( i = 1; i <= n; ++i ) scanf("%d",&gradStramos[ i ]); ^ user.cpp:48:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^