Compilare: main.cpp: In function 'int main()': main.cpp:19:28: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 19 | if(s[i] == '}' && s[v.back()] == '{' || s[i] == ']' && s[v.back()] == '[' || s[i] == ')' && s[v.back()] == '('){ | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:19:102: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 19 | if(s[i] == '}' && s[v.back()] == '{' || s[i] == ']' && s[v.back()] == '[' || s[i] == ')' && s[v.back()] == '('){ | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:18:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 18 | if(s[i] != '{' || s[i] != '[' || s[i] != '(') | ^ main.cpp:8:20: warning: unused variable 'a' [-Wunused-variable] 8 | int n, nr = 0, a, b, c; | ^ main.cpp:8:23: warning: unused variable 'b' [-Wunused-variable] 8 | int n, nr = 0, a, b, c; | ^ main.cpp:8:26: warning: unused variable 'c' [-Wunused-variable] 8 | int n, nr = 0, a, b, c; | ^