Compilare: main.cpp: In function 'void stergere()': main.cpp:56:60: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if(stiva[i-1]>='0'&&stiva[i-1]<='9'&&(stiva[i]>='a'&&stiva[i]<='z'||stiva[i]>='A'&&stiva[i]<='Z')) ~~~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:58:22: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] stiva[i]=NULL; ^~~~ main.cpp: In function 'void afisare()': main.cpp:69:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<strlen(raspuns[i]);j++) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void rezolvare()': main.cpp:91:48: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] stiva[strlen(stiva)-strlen(p)]=NULL; ^~~~ main.cpp:107:44: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] stiva[strlen(stiva)-strlen(p)]=NULL; ^~~~