Compilare: main.cpp: In function 'void sol()': main.cpp:42:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<strlen(aux) && k<x && ok;k++) ~^~~~~~~~~~~~ main.cpp:47:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(aux)==x && s[x-1]=='2') ~~~~~~~~~~~^~~ main.cpp:49:82: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(s[k]=='1' && s[k+1]=='2' && strlen(aux)+2<=x) ~~~~~~~~~~~~~^~~ main.cpp:57:67: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(s[k]=='3' && strlen(aux)+2<=x) ~~~~~~~~~~~~~^~~ main.cpp:70:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(s[k]=='2' && strlen(aux)+1<=x) ~~~~~~~~~~~~~^~~ main.cpp:78:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(strlen(aux)+4<=x && s[k]=='1' && s[k+2]=='3') ~~~~~~~~~~~~~^~~ main.cpp:86:35: warning: statement has no effect [-Wunused-value] ok==0; ~~^~~ main.cpp:90:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(aux)!=x || (strlen(aux)==x && aux[x-1]=='C' && s[x-1]!='2') ||(strlen(aux)==x && aux[x-1]=='B')) ~~~~~~~~~~~^~~ main.cpp:90:55: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(aux)!=x || (strlen(aux)==x && aux[x-1]=='C' && s[x-1]!='2') ||(strlen(aux)==x && aux[x-1]=='B')) ~~~~~~~~~~~^~~ main.cpp:90:106: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(aux)!=x || (strlen(aux)==x && aux[x-1]=='C' && s[x-1]!='2') ||(strlen(aux)==x && aux[x-1]=='B')) ~~~~~~~~~~~^~~ main.cpp:106:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<strlen(aux) && k<x && ok;k++) ~^~~~~~~~~~~~ main.cpp:111:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(aux)==x && s[x-1]=='2') ~~~~~~~~~~~^~~ main.cpp:113:82: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(s[k]=='1' && s[k+1]=='2' && strlen(aux)+2<=x) ~~~~~~~~~~~~~^~~ main.cpp:122:67: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(s[k]=='3' && strlen(aux)+2<=x) ~~~~~~~~~~~~~^~~ main.cpp:135:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(s[k]=='2' && strlen(aux)+1<=x) ~~~~~~~~~~~~~^~~ main.cpp:143:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(strlen(aux)+4<=x && s[k]=='1' && s[k+2]=='3') ~~~~~~~~~~~~~^~~ main.cpp:151:35: warning: statement has no effect [-Wunused-value]