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This commit is contained in:
Jeffrey Hsu 2025-03-23 23:51:30 +08:00
parent 5100a4390c
commit 7619dbdaaa
1 changed files with 8 additions and 4 deletions
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src/171.c
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@ -1,18 +1,22 @@
#include <assert.h>
#include <math.h> #include <math.h>
#include <string.h> #include <string.h>
#include <assert.h>
int titleToNumber(char* columnTitle) {
int titleToNumber(char *columnTitle)
{
int colnum = 0; int colnum = 0;
int csize = strlen(columnTitle); int csize = strlen(columnTitle);
for (int i = 0; i < csize; i++) { for (int i = 0; i < csize; i++)
{
colnum += (columnTitle[i] - 'A' + 1) * pow(26, csize - i - 1); colnum += (columnTitle[i] - 'A' + 1) * pow(26, csize - i - 1);
} }
return colnum; return colnum;
} }
int main() { int main()
{
assert(titleToNumber("A") == 1); assert(titleToNumber("A") == 1);
assert(titleToNumber("AB") == 28); assert(titleToNumber("AB") == 28);
assert(titleToNumber("ZY") == 701); assert(titleToNumber("ZY") == 701);