View Compilation Error

0_0_36700762_26872.cpp:43:1: error: missing terminating " character
 printf("(%.1lf,%.1lf).
 ^
0_0_36700762_26872.cpp:45:1: error: missing terminating " character
 ",c.x,c.y,r);
 ^
0_0_36700762_26872.cpp: In function 'void work()':
0_0_36700762_26872.cpp:44:1: error: expected primary-expression before '%' token
 %.1lf
 ^
0_0_36700762_26872.cpp:44:2: error: unable to find numeric literal operator 'operator""lf'
 %.1lf
  ^
0_0_36700762_26872.cpp:44:2: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes