0_0_24413953_20642.cpp: In function 'void Union(int, int)':
0_0_24413953_20642.cpp:48:9: error: 'flag' was not declared in this scope
flag = 1;
^
0_0_24413953_20642.cpp: In function 'int main()':
0_0_24413953_20642.cpp:54:12: error: 'a' was not declared in this scope
if(a == -1 && b == -1)
^
0_0_24413953_20642.cpp:54:23: error: 'b' was not declared in this scope
if(a == -1 && b == -1)
^
0_0_24413953_20642.cpp:57:12: error: 'a' was not declared in this scope
if(a == 0 && b == 0) {
^
0_0_24413953_20642.cpp:57:22: error: 'b' was not declared in this scope
if(a == 0 && b == 0) {
^
0_0_24413953_20642.cpp:67:13: error: 'maxn' was not declared in this scope
maxn = -1;
^
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