#include <cstdio>
#include <string>
#include <cstring>

int GetValueOf(const int argc, const char *const *const argv, const char *const label)
{
    for(int i=1; i<argc; ++i) {
        if(!strcmp(argv[i],label)) {
            if(i+1<argc) {
                int val=0;
                if(!sscanf(argv[i+1],"%d",&val)) return 0; //brak parametru liczbowego
                else return val;
            }
            else return 0; //brak parametru
        }
    }
    return 0; //nie znaleziono
}

std::string GetStringOf(const int argc, const char *const *const argv, const char *const label)
{
    for(int i=1; i<argc; ++i) {
        if(!strcmp(argv[i],label)) {
            if(i+1<argc) return argv[i+1];
            else return ""; //brak parametru
        }
    }
    return ""; //nie znaleziono
}

int main(int argc, char **argv)
{
    printf("%d\n", GetValueOf(argc,argv,"-a"));
    printf("%s\n", GetStringOf(argc,argv,"-b").c_str());
}