Compilare: main.cpp: In function 'int main()': main.cpp:18:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1 ; i < sir.size() ; i++) ~~^~~~~~~~~~~~ main.cpp:25:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < sir.size() ; i++) ~~^~~~~~~~~~~~ main.cpp:28:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1 ; i < sir.size() ; i++) ~~^~~~~~~~~~~~ main.cpp:40:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < sir.size() ; i++) ~~^~~~~~~~~~~~ main.cpp:42:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i ; j < sir.size() ; j++) ~~^~~~~~~~~~~~ main.cpp:53:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(j == sir.size() - 1) ~~^~~~~~~~~~~~~~~~~