题解 | #截取字符串#
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
#include <iostream> using namespace std; int main() { string str; int num; cin>>str; cin>>num; cout<<str.substr(0,num); } // 64 位输出请用 printf("%lld")
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
#include <iostream> using namespace std; int main() { string str; int num; cin>>str; cin>>num; cout<<str.substr(0,num); } // 64 位输出请用 printf("%lld")
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