View Compilation Error

0_0_30457418_20904.cpp: In function 'void SA()':
0_0_30457418_20904.cpp:63:4: error: expected '}' before 'else'
    else if(exp(del/T)*RAND_MAX>rand()) pre=now;
    ^
0_0_30457418_20904.cpp:63:16: error: 'del' was not declared in this scope
    else if(exp(del/T)*RAND_MAX>rand()) pre=now;
                ^
0_0_30457418_20904.cpp: At global scope:
0_0_30457418_20904.cpp:67:1: error: expected declaration before '}' token
 }
 ^