View Compilation Error

0_0_8219883_31051.cpp:4:16: strng: No such file or directory
0_0_8219883_31051.cpp: In function `int map()':
0_0_8219883_31051.cpp:16: error: `str' undeclared (first use this function)
0_0_8219883_31051.cpp:16: error: (Each undeclared identifier is reported only once for each function it appears in.)