Compilare: main.cpp: In function 'int main()': main.cpp:11:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1;i<=n;i++) ~^~~ main.cpp:12:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=1; j<=m;j++) ~^~~ main.cpp:14:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int q=1;q<=n-k+1;q++) ~^~~~~~~ main.cpp:19:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=q;i<=k+q-1;i++) ~^~~~~~~ main.cpp:20:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=cont;j<=l+cont-1;j++) ~^~~~~~~~~~