Compilare: user.cpp: In function ‘void refacere(int)’: user.cpp:18:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i = 0; i < v[ x ].size(); ++i ){ ^ user.cpp: In function ‘void bfs(int)’: user.cpp:31:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i = 0; i < v[ x ].size(); ++i ) ^ user.cpp:34:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i = 0; i < weight[ x ].size(); ++i ){ ^ user.cpp: In function ‘int main()’: user.cpp:54:15: warning: unused variable ‘i’ [-Wunused-variable] int n, m, i, j, s, t, d, k, x, y, z, c, id, mat; ^ user.cpp:54:18: warning: unused variable ‘j’ [-Wunused-variable] int n, m, i, j, s, t, d, k, x, y, z, c, id, mat; ^ user.cpp:54:21: warning: unused variable ‘s’ [-Wunused-variable] int n, m, i, j, s, t, d, k, x, y, z, c, id, mat; ^ user.cpp:54:24: warning: unused variable ‘t’ [-Wunused-variable] int n, m, i, j, s, t, d, k, x, y, z, c, id, mat; ^ user.cpp:54:27: warning: unused variable ‘d’ [-Wunused-variable] int n, m, i, j, s, t, d, k, x, y, z, c, id, mat; ^ user.cpp:54:42: warning: unused variable ‘c’ [-Wunused-variable] int n, m, i, j, s, t, d, k, x, y, z, c, id, mat; ^ user.cpp:51:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("inception.in","r",stdin); ^ user.cpp:52:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("inception.out","w",stdout); ^ user.cpp:57:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&k); ^ user.cpp:60:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&id,&x,&y,&z); ^ user.cpp:69:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^