Compilare: user.cpp: In function ‘int main()’: user.cpp:36:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] f2[v[i]]++; ^ user.cpp:46:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[v[i]] ++; ^ user.cpp:48:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[w[v[i]]] ++; ^ user.cpp:48:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[w[v[i]]] ++; ^ user.cpp:73:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans = w[v[n]]; ^ user.cpp:79:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] long long s = a[src] + a[w[src]]; ^ user.cpp:79:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] long long s = a[src] + a[w[src]]; ^ user.cpp:79:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] long long s = a[src] + a[w[src]]; ^ user.cpp:93:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] sol += f2[src]; ^ user.cpp:97:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] sol += s + f2[src]; ^ user.cpp:100:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] src = w[src]; ^ user.cpp:104:14: warning: narrowing conversion of ‘n’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] x[i] = {i, ans, sol, n, src}; ^ user.cpp:113:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[v[curr]] ++; ^ user.cpp:115:50: warning: array subscript has type ‘char’ [-Wchar-subscripts] x[next].fin = x[next].sol + f[x[next].src]; ^ user.cpp:30:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &k, &q); ^ user.cpp:55:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%lld", &n); ^