#include <cmath> #include <algorithm> #include <set> #include #include <vector> #include <queue> #include <string> #define inf 0x3fffffff #define eps 1e-10using namespace std;struct node { char op; int val; node *left; node *...
代码如下: #include#include<stack>#include<cmath>#include<cstdio>#include<cstring>#include<iostream>#include<algorithm>#definefa puts("fuck");usingnamespacestd;chard[505];intvis[2]= {0,0};intK(inta,intb) {returna&b; }intA(inta,intb) {returna|b; }intN(inta) {return!a; }intC(in...
枚举p, q, r, s, t 的值,然后带进去递归求出这个串的值,如果都为真那么就是“tautology”,否则是“not”。 #include <iostream> #include <cstdio> #include <algorithm> #include <cmath> #include <stack> #include <vector> #include <queue> #include <cstring> #include <string> #include #...
I can't think of any case where energy is used in that way. Each time we claim energy enters of exits a system, it does it through a known mechanism that has a physical meaning. In the case of neutrinos, we could detect the neutrino leaving the system (with a certain proba...