Compilare: main.cpp: In function 'multime intersect(multime, multime)': main.cpp:11:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0,j=0;i<a.elem.size(),j<b.elem.size();){ ~^~~~~~~~~~~~~~ main.cpp:11:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0,j=0;i<a.elem.size(),j<b.elem.size();){ ~^~~~~~~~~~~~~~ main.cpp:11:20: warning: value computed is not used [-Wunused-value] for(int i=0,j=0;i<a.elem.size(),j<b.elem.size();){ ~^~~~~~~~~~~~~~ main.cpp: In function 'multime reunion(multime, multime)': main.cpp:27:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0,j=0;i<a.elem.size(),j<b.elem.size();){ ~^~~~~~~~~~~~~~ main.cpp:27:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0,j=0;i<a.elem.size(),j<b.elem.size();){ ~^~~~~~~~~~~~~~ main.cpp:27:16: warning: value computed is not used [-Wunused-value] for(i=0,j=0;i<a.elem.size(),j<b.elem.size();){ ~^~~~~~~~~~~~~~ main.cpp:42:8: warning: statement has no effect [-Wunused-value] for(i;i<a.elem.size();i++) ^ main.cpp:42:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i;i<a.elem.size();i++) ~^~~~~~~~~~~~~~ main.cpp:44:8: warning: statement has no effect [-Wunused-value] for(j;j<b.elem.size();j++) ^ main.cpp:44:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j;j<b.elem.size();j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'multime expresie()': main.cpp:55:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(p<s.size() && s[p]=='+'){ ~^~~~~~~~~ main.cpp: In function 'multime factor()': main.cpp:65:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(p<s.size() && s[p]=='*'){ ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:117:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<aux.size() && isnum(aux[i])){ ~^~~~~~~~~~~