Compilare: main.cpp: In function 'int main()': main.cpp:101:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i <= NumarTelefon.length();i++) ~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:113:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i <= NumarTelefon.length() + 2; i++) ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int parcurgereVW(int, int)': main.cpp:92:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:96:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("telefon.in", "r", stdin); ^ main.cpp:97:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("telefon.out", "w", stdout); ^ main.cpp: In function 'int parcurgereVW(int, int)': main.cpp:59:15: warning: iteration 30 invokes undefined behavior [-Waggressive-loop-optimizations] if(w[i] == plecare) indice_plecare = i; ~~~^ main.cpp:57:22: note: within this loop for(int i = 0; i <= 30; i++) ~~^~~~~ main.cpp:25:15: warning: iteration 30 invokes undefined behavior [-Waggressive-loop-optimizations] if(v[i] == plecare) indice_plecare = i; ~~~^ main.cpp:23:22: note: within this loop for(int i = 0; i <= 30; i++) ~~^~~~~ main.cpp:42:39: warning: 'indice_sosire' may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i = indice_plecare; i != indice_sosire; i+=p) ~~^~~~~~~~~~~~~~~~ main.cpp:38:9: warning: 'indice_plecare' may be used uninitialized in this function [-Wmaybe-uninitialized] if(indice_plecare < indice_sosire) p = 1; ^~