TLETLETLE 了这题。
求最短路使用 longlonglong longlonglong -> TLETLETLE
数组开得超过 n2n^2n2 四倍 -> TLETLETLE
不加 inlineinlineinline, constconstconst, noexceptnoexceptnoexcept, registerregisterregister -> TLETLETLE
k=50k=50k=50 每组跑 0.6s (也能AC