Compilare: main.cpp: In function 'void precalc()': main.cpp:20:15: warning: array subscript has type 'char' [-Wchar-subscripts] P[s[i]].push_back(i); ^ main.cpp:25:17: warning: array subscript has type 'char' [-Wchar-subscripts] lst[s[i]]=i; ^ main.cpp: In function 'void process()': main.cpp:40:24: warning: array subscript has type 'char' [-Wchar-subscripts] for(auto i:P[str[1]]) ^ main.cpp:48:32: warning: array subscript has type 'char' [-Wchar-subscripts] pos=nxt[pos][str[j]]+1; ^ main.cpp: In function 'int main()': main.cpp:80:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mesaj2.in","r",stdin); ^ main.cpp:81:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mesaj2.out","w",stdout); ^ main.cpp:83:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s+1); ^ main.cpp:87:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&nr); ^ main.cpp:91:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("\n"); ^ main.cpp:93:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",str+1); ^