Compilare: main.cpp: In function 'void Dijkstra(int)': main.cpp:749:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<A[poz].size();j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:197:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d\n",&N); ^ main.cpp:199:66: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d %d\n",&start.x,&start.y,&final.x,&final.y); ^ main.cpp:207:72: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&Drept[i].stanga_sus.x,&Drept[i].stanga_sus.y); ^ main.cpp:209:76: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d\n",&Drept[i].dreapta_jos.x,&Drept[i].dreapta_jos.y); ^ main.cpp: In function 'void Dijkstra(int)': main.cpp:751:62: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] D[A[poz][j].first] = min(D[A[poz][j].first],D[poz]+A[poz][j].second); ~~~~~^