View Compilation Error

0_0_33540951_25960.cpp: In function 'void build(int, int, int)':
0_0_33540951_25960.cpp:28:34: error: 'scanf_s' was not declared in this scope
         scanf_s("%d", &t[rt].maxn);
                                  ^
0_0_33540951_25960.cpp: In function 'int main()':
0_0_33540951_25960.cpp:75:34: error: 'scanf_s' was not declared in this scope
     while (scanf_s("%d%d", &n, &m) != EOF)
                                  ^
0_0_33540951_25960.cpp:86:29: error: expected primary-expression before '%' token
             ope = getchar();%0
                             ^
0_0_33540951_25960.cpp:86:30: error: expected '}' at end of input
             ope = getchar();%0
                              ^
0_0_33540951_25960.cpp:86:30: error: expected '}' at end of input
0_0_33540951_25960.cpp:86:30: error: expected '}' at end of input