Compilare: main.cpp: In function 'int main()': main.cpp:50:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:50:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:57:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:57:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:59:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = index; i < sir2.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:71:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:71:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:73:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = index; i < sir1.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:85:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir1.size() && index >= sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:85:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir1.size() && index >= sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:110:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:110:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (index < sir1.size() && index < sir2.size() && sir1[index] == sir2[index]) ~~~~~~^~~~~~~~~~~~~ main.cpp:117:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:117:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index >= sir1.size() && index < sir2.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:131:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~~ main.cpp:131:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (index >= sir2.size() && index < sir1.size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:145:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]