0_0_23329778_32611.cpp:20:1: error: 'll' does not name a type
ll ans,t[55],f[2][2][N][N];
^
0_0_23329778_32611.cpp:21:1: error: 'll' does not name a type
ll getans(int x,int y) {
^
0_0_23329778_32611.cpp: In function 'void add(int, int)':
0_0_23329778_32611.cpp:32:33: error: 'f' was not declared in this scope
for (j=Y;j<=mx;j+=j&-j) f[one][two][i][j]^=ans;
^
0_0_23329778_32611.cpp:32:52: error: 'ans' was not declared in this scope
for (j=Y;j<=mx;j+=j&-j) f[one][two][i][j]^=ans;
^
0_0_23329778_32611.cpp: In function 'int main()':
0_0_23329778_32611.cpp:37:25: error: 't' was not declared in this scope
for (i=0;i<=50;i++) t[i]=1ll<<i;
^
0_0_23329778_32611.cpp:40:16: error: 'f' was not declared in this scope
memset(f,0,sizeof(f));mx=n/2+1;
^
0_0_23329778_32611.cpp:45:17: error: 'ans' was not declared in this scope
ans=getans(x1,y1)^getans(x2,y2)^getans(x1,y2)^getans(x2,y1);
^
0_0_23329778_32611.cpp:45:33: error: 'getans' was not declared in this scope
ans=getans(x1,y1)^getans(x2,y2)^getans(x1,y2)^getans(x2,y1);
^
0_0_23329778_32611.cpp:47:25: error: 't' was not declared in this scope
if (ans&t[j]) printf("2 ");
^
0_0_23329778_32611.cpp:51:33: error: 'ans' was not declared in this scope
scanf("%d", &k);ans=0;
^
0_0_23329778_32611.cpp:54:35: error: 't' was not declared in this scope
if (y&1) ans^=t[x];
^
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