0_0_38892750_16518.cpp: In function 'void dfs(int)':
0_0_38892750_16518.cpp:86:22: error: redeclaration of 'int y'
86 | for(int y=0, y; k<26; ++k)
| ^
0_0_38892750_16518.cpp:86:17: note: 'int y' previously declared here
86 | for(int y=0, y; k<26; ++k)
| ^
|