#include #include #include using namespace std; // a11,a12,a13,a14,a15;a21,a22,a23,a24,a25;a31,a32,a33,a34,a35;x1,x2,x3,x4,x5;b1,b2,b3;<=,<=,<= /* 输出描述： true 或者false, 最大差 示例1： 输入 2.3,3,5.6,7,6;11,3,8.6,25,1;0.3,9,5.3,66,7.8;1,3,2,7,5;340,670,80.6;<=,<=,<= 输出 false */ int x1,x2,x3,x4,x5; int res = 0; map s2i = { {"<=", 1}, { ">=", 2 }, { ">", 3 }, { "<", 4 }, { "=", 5 } }; bool check(double a1, double a2, double a3, double a4, double a5, double b, string s) { res = max(res, int(a1 * x1 + a2 * x2 + a3 * x3 + a4 * x4 + a5 * x5 - b)); switch (s2i[s]) { case 1 : return a1 * x1 + a2 * x2 + a3 * x3 + a4 * x4 + a5 * x5 <= b; case 2 : return a1 * x1 + a2 * x2 + a3 * x3 + a4 * x4 + a5 * x5 >= b; case 3 : return a1 * x1 + a2 * x2 + a3 * x3 + a4 * x4 + a5 * x5 > b; case 4 : return a1 * x1 + a2 * x2 + a3 * x3 + a4 * x4 + a5 * x5 < b; case 5 : return a1 * x1 + a2 * x2 + a3 * x3 + a4 * x4 + a5 * x5 == b; } } int main() { string str; cin >> str; for (int i = 0; i < str.size(); ++i) { if (str[i] == ',' || str[i] == ';') str[i] = ' '; } stringstream sin(str); double a11,a12,a13,a14,a15,a21,a22,a23,a24,a25,a31,a32,a33,a34,a35; double b1,b2,b3; string s1, s2, s3; sin >> a11 >> a12 >> a13 >> a14 >> a15 >> a21 >> a22 >> a23 >> a24 >> a25 >> a31 >> a32 >> a33 >> a34 >> a35 >> x1 >> x2 >> x3 >> x4 >> x5 >> b1 >> b2 >> b3 >> s1 >> s2 >> s3; if (check(a11, a12, a13, a14, a15, b1, s1) && check(a21, a22, a23, a24, a25, b2, s2) && check(a31, a32, a33, a34, a35, b3, s3)) cout << "true"; else cout << "false"; cout << " " << res << endl; return 0; }
