Compilare: main.cpp: In function 'int main()': main.cpp:34:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(s[i][j][c-'a']-s[i-m][j][c-'a']-s[i][j-m][c-'a']+s[i-m][j-m][c-'a']!=virus[c-'a']) ^~ main.cpp:36:19: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' sol+=ok; ^~~