Compilare: main.cpp: In function 'int main()': main.cpp:53:21: warning: this 'else' clause does not guard... [-Wmisleading-indentation] else ^~~~ main.cpp:55:25: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else' b[i+1][j+1]+=x/2; ^ main.cpp:76:25: warning: 'sum' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<sol<<" "<<sum; ^ main.cpp:76:17: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<sol<<" "<<sum; ^~~ main.cpp:29:13: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<p; ^