Compilare: main.cpp: In function 'int main()': main.cpp:32:5: warning: this 'else' clause does not guard... [-Wmisleading-indentation] else ^~~~ main.cpp:38:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else' for(j=1; j<=m; j++) ^~~