Compilare: user.cpp: In function ‘void solve2()’: user.cpp:88:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int pz = 0; pz < v.size(); ++pz)///char nou = 'a'; nou <= 'z'; ++nou) ^ user.cpp: In function ‘void Read()’: user.cpp:33:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&TYPE); ^ user.cpp:34:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&N,&M); ^ user.cpp:39:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",c[i]+1); ^ user.cpp: In function ‘int main()’: user.cpp:122:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ferma3.in","r",stdin); ^ user.cpp:123:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ferma3.out","w",stdout); ^ user.cpp: In function ‘void solve2()’: user.cpp:117:43: warning: ‘bestc’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d %d\n%c\n",besti,bestj,bestc); ^