0_0_33877283_29917.cpp:7:1: error: 'usingnamespace' does not name a type
usingnamespace std;
^
0_0_33877283_29917.cpp: In function 'int intmain()':
0_0_33877283_29917.cpp:27:22: error: 'stringtem' was not declared in this scope
stringtem="";
^
0_0_33877283_29917.cpp:31:22: error: 'tem' was not declared in this scope
tem=tem+str[i]+str[i+1];
^
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