0_0_37885920_18413.cpp: In function 'void solve()':
0_0_37885920_18413.cpp:16:41: error: 'a' was not declared in this scope
for(int i = 1; i <= n; i ++) cin >> a[i];
^
0_0_37885920_18413.cpp:17:41: error: 'b' was not declared in this scope
for(int i = 1; i <= n; i ++) cin >> b[i];
^
0_0_37885920_18413.cpp:18:45: error: 'c' was not declared in this scope
for(int i = 1; i <= n * 2; i ++) cin >> c[i];
^
0_0_37885920_18413.cpp:22:12: error: 'a' was not declared in this scope
if(a[i] != c[k] && b[j] != c[k]){ // 无解
^
0_0_37885920_18413.cpp:22:20: error: 'c' was not declared in this scope
if(a[i] != c[k] && b[j] != c[k]){ // 无解
^
0_0_37885920_18413.cpp:22:28: error: 'b' was not declared in this scope
if(a[i] != c[k] && b[j] != c[k]){ // 无解
^
0_0_37885920_18413.cpp:25:12: error: 'a' was not declared in this scope
if(a[i] != b[j]){ // 匹配方式唯一
^
0_0_37885920_18413.cpp:25:20: error: 'b' was not declared in this scope
if(a[i] != b[j]){ // 匹配方式唯一
^
0_0_37885920_18413.cpp:26:16: error: 'c' was not declared in this scope
if(c[k] == a[i]) i ++;
^
0_0_37885920_18413.cpp:34:28: error: 'c' was not declared in this scope
if(b[j] == c[k]){
^
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