Compilare: main.cpp: In function 'void BackRec4(int)': main.cpp:48:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=0;i<M;i++) ^~~ main.cpp:52:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(int w= 0;w<N;w++) ^~~ main.cpp:63:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(sump-sumn<0) ^