Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:88:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < mat[x][y].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:112:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d", &S, &n); ^ user.cpp:117:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &cost[i][j]); ^ user.cpp: In function ‘void dijkstra()’: user.cpp:96:71: warning: ‘ceeste’ may be used uninitialized in this function [-Wmaybe-uninitialized] dv[mat[x][y][i].first][mat[x][y][i].second].d = ceeste; ^