Compilare: user.cpp: In function ‘int main()’: user.cpp:18:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=m+2; i++) p[i]=p[i-1]*211; ^ user.cpp:19:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<n; i++) hashA+=(A[i]-'0')*p[i]; ^ user.cpp:20:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<m; i++) hashB[i]=p[i]*(B[i]-'0'); ^ user.cpp:21:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<m; i++) hashB[i]+=hashB[i-1]; ^ user.cpp:25:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=n-1; i<m; i++) ^ user.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=k; i++) ^