Compilare: main.cpp: In function 'int main()': main.cpp:18:11: warning: array subscript has type 'char' [-Wchar-subscripts] d[s[n]][n]=i; ^ main.cpp:22:15: warning: array subscript has type 'char' [-Wchar-subscripts] d[s[i]][i]=i; ^ main.cpp:30:21: warning: array subscript has type 'char' [-Wchar-subscripts] for(i=d[a[1]][1];i<=n-l+1&&i!=0;i=d[a[1]][i+1]){ ^ main.cpp:30:49: warning: array subscript has type 'char' [-Wchar-subscripts] for(i=d[a[1]][1];i<=n-l+1&&i!=0;i=d[a[1]][i+1]){ ^ main.cpp:32:50: warning: array subscript has type 'char' [-Wchar-subscripts] for (j=i,poz=2;j && poz<=l;j=d[a[poz]][j+1],poz++){} ^ main.cpp:16:25: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets (s+1,1005,fin); ^ main.cpp:24:27: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d\n",&m); ^ main.cpp:27:29: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets (a+1,1005,fin); ^ main.cpp:18:15: warning: 'i' is used uninitialized in this function [-Wuninitialized] d[s[n]][n]=i; ~~~~~~~~~~^~