Compilare: user.cpp: In function ‘int main()’: user.cpp:19:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[1-s[l]][i]=dp[s[l]][i]=dp[0][i-1]+dp[1][i-1]; ^ user.cpp:22:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[s[l]][i]-=dp[s[k]][i-(l-k)]; ^ user.cpp:22:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[s[l]][i]-=dp[s[k]][i-(l-k)]; ^ user.cpp:24:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[s[l]][i]+=dp[1-s[k]][i-(l-k)]; ^ user.cpp:25:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(dp[s[l]][i]<0) ^ user.cpp:26:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[s[l]][i]+=MOD; ^ user.cpp:27:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[s[l]][i]%=MOD; ^ user.cpp:9:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interzis.in","r",stdin); ^ user.cpp:10:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interzis.out","w",stdout); ^ user.cpp:11:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d\n%s",&n,&l,s+1); ^