Compilare: main.cpp: In function 'void solve()': main.cpp:100:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0 ; i < result.size() ; i++) { ~~^~~~~~~~~~~~~~~ main.cpp:21:15: warning: unused variable 'j' [-Wunused-variable] int i, k, j, step; ^ main.cpp:66:25: warning: 'potentialDistance' may be used uninitialized in this function [-Wmaybe-uninitialized] if(current_potential == potentialDistance) { ^~ main.cpp:62:125: warning: 'potentialValue' may be used uninitialized in this function [-Wmaybe-uninitialized] int current_potential = potentialValue + (cost[leftNode][idx[k]] - potential[idx[k]] - leftNodePotential); ^