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0_0_29473632_19413.cpp:1:1122: fatal error: GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stdc++.h>usin: Invalid argument
 #include <bits/stdc++.h>using namespace std;typedef long long LL;const LL INF=1e18;const int N=1e2+10; LL f[20][N][N],g[2][N];int n,L; int main(){    int T;    scanf("%d",&T);    while(T--)    {        scanf("%d%d",&n,&L);        for(int i=0;i<n;i++)            for(int j=0;j<n;j++)                scanf("%lld",&f[0][i][j]);         --L;         int lev=0;        for(int i=0;(1<<(i+1))<=L;i++)        {            for(int j=0;j<n;j++)                for(int k=0;k<n;k++)                {                        f[i+1][j][k]=-INF;                        for(int x=0;x<n;++x)                            f[i+1][j][k]=max(f[i][j][x]+f[i][x][k],f[i+1][j][k]);                }            ++lev;        }        int cur=0;        fill(g[cur],g[cur]+n,0);        for(int i=lev;i>=0;--i)        {            if(L<(1<<i)) continue;            L-=(1<<i);            cur=1-cur;            fill(g[cur],g[cur]+n,-INF);            for(int j=0;j<n;j++)                for(int k=0;k<n;k++)                g[cur][k]=max(g[1-cur][j]+f[i][j][k],g[cur][k]);        }        printf("%lld\n",*max_element(g[cur],g[cur]+n));    }    return 0;}
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compilation terminated.