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View Compilation Error

0_0_34150665_23246.cpp:6:1: error: stray '\241' in program
 while(scanf(¡±%lf%lf¡±,&v,&d)!=EOF)
 ^
0_0_34150665_23246.cpp:6:1: error: stray '\261' in program
0_0_34150665_23246.cpp:6:1: error: stray '\241' in program
0_0_34150665_23246.cpp:6:1: error: stray '\261' in program
0_0_34150665_23246.cpp:7:1: error: stray '\241' in program
 printf(¡±%.0lf\n¡±,ceil(v/d+sqrt(2*v/d+0.25)-1.5));
 ^
0_0_34150665_23246.cpp:7:1: error: stray '\261' in program
0_0_34150665_23246.cpp:7:1: error: stray '\' in program
0_0_34150665_23246.cpp:7:1: error: stray '\241' in program
0_0_34150665_23246.cpp:7:1: error: stray '\261' in program
0_0_34150665_23246.cpp: In function 'int main()':
0_0_34150665_23246.cpp:6:15: error: expected primary-expression before '%' token
 while(scanf(¡±%lf%lf¡±,&v,&d)!=EOF)
               ^
0_0_34150665_23246.cpp:6:16: error: 'lf' was not declared in this scope
 while(scanf(¡±%lf%lf¡±,&v,&d)!=EOF)
                ^
0_0_34150665_23246.cpp:7:10: error: expected primary-expression before '%' token
 printf(¡±%.0lf\n¡±,ceil(v/d+sqrt(2*v/d+0.25)-1.5));
          ^
0_0_34150665_23246.cpp:7:11: error: unable to find numeric literal operator 'operator""lf'
 printf(¡±%.0lf\n¡±,ceil(v/d+sqrt(2*v/d+0.25)-1.5));
           ^
0_0_34150665_23246.cpp:7:11: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes


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