Compilare: main.cpp: In function 'int main()': main.cpp:83:12: warning: array subscript has type 'char' [-Wchar-subscripts] 83 | if(f[nr] == 0){ | ^~ main.cpp:84:11: warning: array subscript has type 'char' [-Wchar-subscripts] 84 | f[nr] = 1; | ^~ main.cpp:89:13: warning: array subscript has type 'char' [-Wchar-subscripts] 89 | app[nr] += p; | ^~ main.cpp:91:13: warning: array subscript has type 'char' [-Wchar-subscripts] 91 | app[nr] -= p; | ^~ main.cpp:52:16: warning: unused variable 'j' [-Wunused-variable] 52 | int n, m, i, j, sn, si; | ^