Compilare: main.cpp: In function 'int main()': main.cpp:30:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i<=M; i++) cin>>A[i]; ~^~~ main.cpp:31:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i<=N; i++) cin>>B[i]; ~^~~ main.cpp:33:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=M; i++) AB[i][0] = 0; ~^~~ main.cpp:34:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1; j<=N; j++) AB[0][j] = 0; ~^~~ main.cpp:36:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=M; i++){ ~^~~ main.cpp:37:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1; j<=N; j++){ ~^~~ main.cpp:50:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=k;i++){ ~^~~