Compilare: user.cpp: In function ‘int main()’: user.cpp:31:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<tu[word[i]-'a'].size();j++) ^ user.cpp:10:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teroristi.in","r",stdin); ^ user.cpp:11:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teroristi.out","w",stdout); ^ user.cpp:25:14: warning: array subscript is above array bounds [-Warray-bounds] have[c[i][2]-'a']++; ^ user.cpp:27:12: warning: array subscript is above array bounds [-Warray-bounds] tu[c[i][2]-'a'].push_back(i); ^ user.cpp:37:19: warning: array subscript is above array bounds [-Warray-bounds] if(have[c[v][2]-'a']>need[c[v][2]-'a']) ^ user.cpp:41:17: warning: array subscript is above array bounds [-Warray-bounds] have[c[v][2]-'a']--; ^