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View Compilation Error

0_0_34724149_19554.cpp:6:1: error: 'int64' does not name a type
 int64 c[1000005];  //树状数组
 ^
0_0_34724149_19554.cpp:10:1: error: 'int64' does not name a type
 int64 ans[1000005]; //记录结果;
 ^
0_0_34724149_19554.cpp: In function 'void update(int, int)':
0_0_34724149_19554.cpp:32:9: error: 'c' was not declared in this scope
         c[n]+=x;
         ^
0_0_34724149_19554.cpp: At global scope:
0_0_34724149_19554.cpp:36:1: error: 'int64' does not name a type
 int64 getsum(int m)
 ^
0_0_34724149_19554.cpp: In function 'int main()':
0_0_34724149_19554.cpp:54:16: error: 'c' was not declared in this scope
         memset(c,0,sizeof(c));
                ^
0_0_34724149_19554.cpp:79:13: error: 'ans' was not declared in this scope
             ans[f[i].num]=getsum(f[i].r)-getsum(f[i].l-1);
             ^
0_0_34724149_19554.cpp:79:40: error: 'getsum' was not declared in this scope
             ans[f[i].num]=getsum(f[i].r)-getsum(f[i].l-1);
                                        ^
0_0_34724149_19554.cpp:83:30: error: 'ans' was not declared in this scope
             printf("%I64d\n",ans[i]);
                              ^


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