Compilare: main.cpp: In function 'int main()': main.cpp:53:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:53:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:60:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:60:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:62:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = index; i < sir2.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:74:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:74:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:76:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = index; i < sir1.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:88:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir1.size() && index >= sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:88:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir1.size() && index >= sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:113:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:113:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:120:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:120:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:134:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:134:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:148:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]