foo.cc: In function 'void down(int, int, int)':
foo.cc:40:13: warning: unused variable 'm' [-Wunused-variable]
         int m = L + (R - L) / 2;
             ^
foo.cc: In function 'void solve(int, int)':
foo.cc:72:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d", &c, &a, &b);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
foo.cc: In function 'void init(int, int)':
foo.cc:82:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &data[i]);
         ~~~~~^~~~~~~~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:88:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~

正在同步测试数据，请稍后
[Hydro](https://hydro.ac)提供评测服务