0_0_37887228_71.cpp:7:1: error: expected initializer before 'int'
int d[N], n, f[N];
^
0_0_37887228_71.cpp: In function 'void solve()':
0_0_37887228_71.cpp:11:18: error: 'n' was not declared in this scope
scanf("%d", &n);
^
0_0_37887228_71.cpp:13:33: error: 'd' was not declared in this scope
for(int i = 1; i <= n; ++i) d[i] = f[i] = 0;
^
0_0_37887228_71.cpp:13:40: error: 'f' was not declared in this scope
for(int i = 1; i <= n; ++i) d[i] = f[i] = 0;
^
0_0_37887228_71.cpp:17:9: error: 'f' was not declared in this scope
f[i] = x;
^
0_0_37887228_71.cpp:18:9: error: 'd' was not declared in this scope
d[f[i]]++;
^
0_0_37887228_71.cpp:21:37: error: 'd' was not declared in this scope
for(int i = 1; i <= n; ++i) if(!d[i]) q[r++] = i;
^
0_0_37887228_71.cpp:24:16: error: 'd' was not declared in this scope
if(!(--d[f[u]])) q[r++] = f[u];
^
0_0_37887228_71.cpp:24:18: error: 'f' was not declared in this scope
if(!(--d[f[u]])) q[r++] = f[u];
^
0_0_37887228_71.cpp:26:5: error: 'll' was not declared in this scope
ll P = -1, Q = -1;
^
0_0_37887228_71.cpp:28:13: error: 'd' was not declared in this scope
if(!d[i]) continue;
^
0_0_37887228_71.cpp:29:12: error: expected ';' before 'x'
ll x = 0, y = 0;
^
0_0_37887228_71.cpp:30:24: error: 'd' was not declared in this scope
for(int j = i; d[j]; j = f[j]) {
^
0_0_37887228_71.cpp:30:34: error: 'f' was not declared in this scope
for(int j = i; d[j]; j = f[j]) {
^
0_0_37887228_71.cpp:31:15: error: 'y' was not declared in this scope
++y;
^
0_0_37887228_71.cpp:32:13: error: 'x' was not declared in this scope
x += j;
^
0_0_37887228_71.cpp:35:12: error: 'P' was not declared in this scope
if(P == -1 && Q == -1) P = x, Q = y;
^
0_0_37887228_71.cpp:35:23: error: 'Q' was not declared in this scope
if(P == -1 && Q == -1) P = x, Q = y;
^
0_0_37887228_71.cpp:35:36: error: 'x' was not declared in this scope
if(P == -1 && Q == -1) P = x, Q = y;
^
0_0_37887228_71.cpp:35:43: error: 'y' was not declared in this scope
if(P == -1 && Q == -1) P = x, Q = y;
^
0_0_37887228_71.cpp:37:24: error: 'y' was not declared in this scope
if(1ll*P * y != 1ll*x * Q) {
^
0_0_37887228_71.cpp:37:33: error: 'x' was not declared in this scope
if(1ll*P * y != 1ll*x * Q) {
^
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