Compilare: main.cpp: In function 'int main()': main.cpp:15:17: warning: array subscript has type 'char' [-Wchar-subscripts] {val[var[i-1]]=!val[var[i-1]]; ^ main.cpp:15:32: warning: array subscript has type 'char' [-Wchar-subscripts] {val[var[i-1]]=!val[var[i-1]]; ^ main.cpp: In function 'int rezolva()': main.cpp:39:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(;c<strlen(s);) ~^~~~~~~~~~ main.cpp:60:27: warning: array subscript has type 'char' [-Wchar-subscripts] else x[++x[0]]=val[s[c++]]; ^ main.cpp: In function 'int main()': main.cpp:13:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bool.out","w",stdout); ^ main.cpp: In function 'void citire()': main.cpp:24:30: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] {freopen("bool.in","r",stdin); ^ main.cpp:25:19: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(s,nm,stdin); ^ main.cpp:28:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:29:22: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(var,100,stdin); ^ main.cpp:30:22: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(var,100,stdin); ^