0_0_21136621_26169.cpp: In function 'int main()':
0_0_21136621_26169.cpp:32:21: error: expected primary-expression before '<' token
f[c]=b; <span style="white-space:pre"> </span>//合并操作
^
0_0_21136621_26169.cpp:32:22: error: 'span' was not declared in this scope
f[c]=b; <span style="white-space:pre"> </span>//合并操作
^
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