Compilare: main.cpp: In function 'int main()': main.cpp:49:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:49:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:56:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:56:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:58:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = index; i < sir2.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:70:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:70:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:72:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = index; i < sir1.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:84:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir1.size() && index >= sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:84:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir1.size() && index >= sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:109:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:109:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:116:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:116:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:130:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:130:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:144:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]