Compilare: main.cpp: In function 'void rez()': main.cpp:10:17: warning: NULL used in arithmetic [-Wpointer-arith] if (s[poz]!=NULL) ^~~~ main.cpp:22:31: warning: array subscript has type 'char' [-Wchar-subscripts] coef[asoc[s[poz++]]]+=nr; ^ main.cpp:22:32: warning: array subscript has type 'char' [-Wchar-subscripts] coef[asoc[s[poz++]]]+=nr; ^ main.cpp: In function 'int main()': main.cpp:33:13: warning: array subscript is above array bounds [-Warray-bounds] asoc['t']=1,asoc['x']=2,asoc['y']=3,asoc['z']=4; ~~~~~~~~^ main.cpp:33:25: warning: array subscript is above array bounds [-Warray-bounds] asoc['t']=1,asoc['x']=2,asoc['y']=3,asoc['z']=4; ~~~~~~~~^ main.cpp:33:37: warning: array subscript is above array bounds [-Warray-bounds] asoc['t']=1,asoc['x']=2,asoc['y']=3,asoc['z']=4; ~~~~~~~~^ main.cpp:33:49: warning: array subscript is above array bounds [-Warray-bounds] asoc['t']=1,asoc['x']=2,asoc['y']=3,asoc['z']=4; ~~~~~~~~^