Compilare: main.cpp: In member function 'prs& prs::operator>>(int&)': main.cpp:25:4: warning: this 'while' clause does not guard... [-Wmisleading-indentation] 25 | while(!isdigit(c=read_ch())); | ^~~~~ main.cpp:26:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while' 26 | n=c-'0'; | ^ main.cpp: In function 'void test_case()': main.cpp:48:12: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses] 48 | if(v[3]==v[1]^v[2]) | ~~~~^~~~~~