Compilare: main.cpp: In function 'int main()': main.cpp:49:16: warning: array subscript has type 'char' [-Wchar-subscripts] fv[s[i]]++,mat[nr(s[i])][i]++; ^ main.cpp:48:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=k;i++) ^~~ main.cpp:50:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(i=1;i<=52;i++) ^~~ main.cpp:88:21: warning: array subscript has type 'char' [-Wchar-subscripts] cnt=n/(2*k)*(fv[ch]+fv[caps(ch)]); ^ main.cpp:88:34: warning: array subscript has type 'char' [-Wchar-subscripts] cnt=n/(2*k)*(fv[ch]+fv[caps(ch)]); ^ main.cpp:92:18: warning: array subscript has type 'char' [-Wchar-subscripts] cnt=cnt+fv[ch]+mat[nr(caps(ch))][n%(2*k)-k]; ^ main.cpp:94:24: warning: array subscript has type 'char' [-Wchar-subscripts] cnt=cnt+fv[caps(ch)]+mat[nr(ch)][n%(2*k)-k]; ^ main.cpp:54:9: warning: variable 'p4' set but not used [-Wunused-but-set-variable] int p4; ^~ main.cpp:58:15: warning: unused variable 'lg' [-Wunused-variable] long long lg=k; ^~ main.cpp:59:15: warning: variable 'ss' set but not used [-Wunused-but-set-variable] long long ss=0; ^~ main.cpp:60:15: warning: unused variable 'a' [-Wunused-variable] long long a,b,cnt=0; ^ main.cpp:60:17: warning: unused variable 'b' [-Wunused-variable] long long a,b,cnt=0; ^ main.cpp:61:15: warning: unused variable 'x1' [-Wunused-variable] long long x1,x2,cx; ^~ main.cpp:61:18: warning: unused variable 'x2' [-Wunused-variable] long long x1,x2,cx; ^~ main.cpp:61:21: warning: variable 'cx' set but not used [-Wunused-but-set-variable] long long x1,x2,cx; ^~