Compilare: main.cpp: In function 'll caut(int, int)': main.cpp:24:47: warning: operation on 'mult' may be undefined [-Wsequence-point] return a[x][2] * (1<<mult) + caut(gas(x),mult++); ~~~~^~ main.cpp: In function 'int main()': main.cpp:44:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<=b.size();j++) ~^~~~~~~~~~ main.cpp:46:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j>=b.size()) ~^~~~~~~~~~ main.cpp:53:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(suma==b[j]) main.cpp: In function 'int gas(int)': main.cpp:19:1: warning: control reaches end of non-void function [-Wreturn-type] } ^