Eroare de compilare: main.cpp: In function 'void solve()': main.cpp:28:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (first > v.size()) ~~~~~~^~~~~~~~~~ main.cpp:35:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 0; i < first; i++) ~~^~~~~~~ main.cpp:41:7: error: invalid operands of types 'FILE* {aka _IO_FILE*}' and 'int' to binary 'operator<<' o << index << " " << v[i].second << "\n"; ~~^~~~~~~~ main.cpp: In function 'int main()': main.cpp:56:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 1; i <= n; i++) ~~^~~~ main.cpp:54:21: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &n); ^ main.cpp:59:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &k); ^ Non zero exit status: 1