Compilare: main.cpp: In function 'void prelucrare()': main.cpp:15:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < s.size() - 1; i++) { ~~^~~~~~~~~~~~~~ main.cpp:23:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int dr = i + 1; dr < s.size(); dr++) { ~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:46:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < s.size() - 1; i++) { ~~^~~~~~~~~~~~~~ main.cpp:48:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i; j < s.size() - 1; j++) { ~~^~~~~~~~~~~~~~ main.cpp: In function 'void prelucrare()': main.cpp:30:34: warning: 'pd' may be used uninitialized in this function [-Wmaybe-uninitialized] if (s[ps] > s[i] && s[i] < s[pd]) { ^ main.cpp:14:6: warning: 'ps' may be used uninitialized in this function [-Wmaybe-uninitialized] int ps, pd; ^~