0_0_18128787_8008.cpp: In function 'int main()':
0_0_18128787_8008.cpp:5:24: error: 'a' was not declared in this scope
while(scanf("%s%s",a,b)!=EOF)
^
0_0_18128787_8008.cpp:5:26: error: 'b' was not declared in this scope
while(scanf("%s%s",a,b)!=EOF)
^
0_0_18128787_8008.cpp:5:27: error: 'scanf' was not declared in this scope
while(scanf("%s%s",a,b)!=EOF)
^
0_0_18128787_8008.cpp:5:30: error: 'EOF' was not declared in this scope
while(scanf("%s%s",a,b)!=EOF)
^
0_0_18128787_8008.cpp:7:20: error: 'strlen' was not declared in this scope
l1=strlen(a);
^
0_0_18128787_8008.cpp:14:13: error: 'x1' was not declared in this scope
x1[i].r=a[l1-i-1]-'0';
^
0_0_18128787_8008.cpp:17:26: error: 'x1' was not declared in this scope
for(;i<l;i++) x1[i].r=x1[i].i=0.0;
^
0_0_18128787_8008.cpp:21:13: error: 'x2' was not declared in this scope
x2[i].r=b[l2-i-1]-'0';
^
0_0_18128787_8008.cpp:24:26: error: 'x2' was not declared in this scope
for(;i<l;i++) x2[i].r=x2[i].i=0.0;
^
0_0_18128787_8008.cpp:25:13: error: 'x1' was not declared in this scope
fft(x1,l,1); // DFT(a)
^
0_0_18128787_8008.cpp:25:19: error: 'fft' was not declared in this scope
fft(x1,l,1); // DFT(a)
^
0_0_18128787_8008.cpp:26:13: error: 'x2' was not declared in this scope
fft(x2,l,1); // DFT(b)
^
0_0_18128787_8008.cpp:29:26: error: 'sum' was not declared in this scope
for(i=0;i<l;i++) sum[i]=x1[i].r+0.5; // 四舍五入
^
0_0_18128787_8008.cpp:32:13: error: 'sum' was not declared in this scope
sum[i+1]+=sum[i]/10;
^
0_0_18128787_8008.cpp:36:15: error: 'sum' was not declared in this scope
while(sum[l]<=0 && l>0) l--; // 检索最高位
^
0_0_18128787_8008.cpp:37:38: error: 'sum' was not declared in this scope
for(i=l;i>=0;i--) putchar(sum[i]+'0'); // 倒序输出
^
0_0_18128787_8008.cpp:37:48: error: 'putchar' was not declared in this scope
for(i=l;i>=0;i--) putchar(sum[i]+'0'); // 倒序输出
^
0_0_18128787_8008.cpp:38:21: error: 'putchar' was not declared in this scope
putchar('\n');
^
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