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View Compilation Error

0_0_38262979_23698\Main.java:2: 错误: 非法的类型开始
public:
      ^
0_0_38262979_23698\Main.java:2: 错误: 需要';'
public:
       ^
0_0_38262979_23698\Main.java:3: 错误: 方法声明无效; 需要返回类型
    double largestTriangleArea(vector<vector<int>>& points) {
           ^
0_0_38262979_23698\Main.java:3: 错误: 需要<标识符>
    double largestTriangleArea(vector<vector<int>>& points) {
                                                  ^
0_0_38262979_23698\Main.java:3: 错误: 需要';'
    double largestTriangleArea(vector<vector<int>>& points) {
                                                   ^
0_0_38262979_23698\Main.java:3: 错误: 非法的类型开始
    double largestTriangleArea(vector<vector<int>>& points) {
                                                          ^
0_0_38262979_23698\Main.java:3: 错误: 需要<标识符>
    double largestTriangleArea(vector<vector<int>>& points) {
                                                           ^
0_0_38262979_23698\Main.java:3: 错误: 需要';'
    double largestTriangleArea(vector<vector<int>>& points) {
                                                             ^
0_0_38262979_23698\Main.java:4: 错误: 需要<标识符>
        double res = -1;
                  ^
0_0_38262979_23698\Main.java:5: 错误: 非法的类型开始
        for(auto m : points)
        ^
0_0_38262979_23698\Main.java:5: 错误: 需要')'
        for(auto m : points)
                  ^
0_0_38262979_23698\Main.java:5: 错误: 需要<标识符>
        for(auto m : points)
                           ^
0_0_38262979_23698\Main.java:6: 错误: 非法的类型开始
            for(auto n : points)
            ^
0_0_38262979_23698\Main.java:6: 错误: 需要<标识符>
            for(auto n : points)
               ^
0_0_38262979_23698\Main.java:6: 错误: 需要';'
            for(auto n : points)
                ^
0_0_38262979_23698\Main.java:6: 错误: 需要<标识符>
            for(auto n : points)
                      ^
0_0_38262979_23698\Main.java:6: 错误: 需要<标识符>
            for(auto n : points)
                               ^
0_0_38262979_23698\Main.java:7: 错误: 非法的类型开始
                for(auto p : points)
                ^
0_0_38262979_23698\Main.java:7: 错误: 需要<标识符>
                for(auto p : points)
                   ^
0_0_38262979_23698\Main.java:7: 错误: 需要';'
                for(auto p : points)
                    ^
0_0_38262979_23698\Main.java:7: 错误: 需要<标识符>
                for(auto p : points)
                          ^
0_0_38262979_23698\Main.java:7: 错误: 需要<标识符>
                for(auto p : points)
                                   ^
0_0_38262979_23698\Main.java:12: 错误: 非法的类型开始
        return res;
        ^
0_0_38262979_23698\Main.java:12: 错误: 需要';'
        return res;
              ^
0_0_38262979_23698\Main.java:14: 错误: 需要class, interface或enum
};
^
25 个错误


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